I think the most logical thing (like many have said) is to leave a gap between the last WoW addon and WC4 to give time to adjust things properly again. The gap could be filled with a dozen novels, just like the pre-WC3-novels... Anything else would just irritate either the WoW-community or the hardcore WC3 fans (some of them aren't even familiar with WC2). Besides the "RTS-lore butchering" WoW has created so many layers of new storylines, it would be a sin to not take advantage of those.
I never thought that zergs are evil, there is no evil race, maximum evil/bad individuals. Zergs are geneticly modified animals, they have insticts as protoss or Terran have.
I dont know what overmind want to do but I think he wanted to save his race from Amon (possibly he is the Dark Voice). The question is when he is killed the Xel'nagas that creat him, were they the good Xel'nagas or amon and his followers? Only things that we now that overmind do what he do because he want to become perfect. My opinion is that he wanted to save his race or possibly other races too by assimilating them,(if it is good or bad every one have the right to decide it) or just simply his revenge for what they do to him and his race. If I am right he did what the terrans or protoss would be if they have the same situation.
Lichking(Nerzhul): First he was an arogant power hunger shaman (might be the Warlord of Dreanor give information about him when he was before burning legiong arrives.) who become a warlock and after he betrayed the Burning Legion, thats why they kill him and put his soul to the "lich king" equipment(helmet, armor, frostmourne) So he definitly want power and of course revenge. Arthas as a lich king is a different question.
Kerrigan: I think she wasn't evil, she wanted to revenge on Arcturus, because he left him on New Gettysburg. She killed Arcturus so his revenge is fullfilled. Meanwhile She doing this he try to protect humans too, only killed those who threat to her zergs.
The question is the same as the question about overmind, what were her motivations when she was Normal Zerg, I think she want the same protect the zerg from treats. I know there is a dialogue in Queen of the Blades book where she kills an overlord in rage, because it send him a massage(in telepath) from Zasz who dont agree with her. I think that was the transition between human and zerg( in her soul the body is already turned) he dont cares about protoss and terrans and still dont care about zerg only wants her revenge. She also let Jim alive and let him and his survivor followers to leave and tell him to not confontrated the Zerg anyomore, and after the final battle where she beat the dominum the UED and the protoss, she dont finish them just walk away for 4 years, and I think her returns true reason is that she felt that Amon is alive again , and of course revenge on Arcturus.
Sylvanas: Se killed by Arthas and turned into a banshee. Later she get his body back and become to banshee queen. She absolutely want revenge on Arthas and she use any neccesary things to get it. Her motivations are uknown, she tells that she is loyal to the horde but she doing things that questioing this loyalty(for example the plague thats kill undeads and livings too.) So her motivations are unknown because Arthas is death, It is possible that she just want to save the forsaken az race.
So with sc2 heart of the swarm Story blizzard confirm my opportunity about Kerrigan's behavior that I though about her in sc1and sc1 broodwar and in sc2 wings of liberty, and many of will reveled in sc2 Legacy of the Void, confirmed more about Overmind and Kerrigan.
About Lich king(Nerzhul) and Sylvanas, hopefully Warlords of Dreanor give some answers.
I think the most logical thing (like many have said) is to leave a gap between the last WoW addon and WC4 to give time to adjust things properly again. The gap could be filled with a dozen novels, just like the pre-WC3-novels... Anything else would just irritate either the WoW-community or the hardcore WC3 fans (some of them aren't even familiar with WC2). Besides the "RTS-lore butchering" WoW has created so many layers of new storylines, it would be a sin to not take advantage of those.
I never thought that zergs are evil, there is no evil race, maximum evil/bad individuals. Zergs are geneticly modified animals, they have insticts as protoss or Terran have.
I dont know what overmind want to do but I think he wanted to save his race from Amon (possibly he is the Dark Voice). The question is when he is killed the Xel'nagas that creat him, were they the good Xel'nagas or amon and his followers? Only things that we now that overmind do what he do because he want to become perfect. My opinion is that he wanted to save his race or possibly other races too by assimilating them,(if it is good or bad every one have the right to decide it) or just simply his revenge for what they do to him and his race. If I am right he did what the terrans or protoss would be if they have the same situation.
Lichking(Nerzhul): First he was an arogant power hunger shaman (might be the Warlord of Dreanor give information about him when he was before burning legiong arrives.) who become a warlock and after he betrayed the Burning Legion, thats why they kill him and put his soul to the "lich king" equipment(helmet, armor, frostmourne) So he definitly want power and of course revenge. Arthas as a lich king is a different question.
Kerrigan: I think she wasn't evil, she wanted to revenge on Arcturus, because he left him on New Gettysburg. She killed Arcturus so his revenge is fullfilled. Meanwhile She doing this he try to protect humans too, only killed those who threat to her zergs. The question is the same as the question about overmind, what were her motivations when she was Normal Zerg, I think she want the same protect the zerg from treats. I know there is a dialogue in Queen of the Blades book where she kills an overlord in rage, because it send him a massage(in telepath) from Zasz who dont agree with her. I think that was the transition between human and zerg( in her soul the body is already turned) he dont cares about protoss and terrans and still dont care about zerg only wants her revenge. She also let Jim alive and let him and his survivor followers to leave and tell him to not confontrated the Zerg anyomore, and after the final battle where she beat the dominum the UED and the protoss, she dont finish them just walk away for 4 years, and I think her returns true reason is that she felt that Amon is alive again , and of course revenge on Arcturus.
Sylvanas: Se killed by Arthas and turned into a banshee. Later she get his body back and become to banshee queen. She absolutely want revenge on Arthas and she use any neccesary things to get it. Her motivations are uknown, she tells that she is loyal to the horde but she doing things that questioing this loyalty(for example the plague thats kill undeads and livings too.) So her motivations are unknown because Arthas is death, It is possible that she just want to save the forsaken az race.
So with sc2 heart of the swarm Story blizzard confirm my opportunity about Kerrigan's behavior that I though about her in sc1and sc1 broodwar and in sc2 wings of liberty, and many of will reveled in sc2 Legacy of the Void, confirmed more about Overmind and Kerrigan. About Lich king(Nerzhul) and Sylvanas, hopefully Warlords of Dreanor give some answers.