Definitely not. At least not by Blizzard. Maybe they release some DLC set during SCI (which I would be 100% on board for) but straight up bringing SCI content into the game would sabotage SC remastered which is something they would not want.
Ouuuuh... That Zerg-ish commander seems really cool. I love how creative your unit concepts are! Most pitches for "new" units I read about so far are really just describing variations of existing units, but when I read through your ideas I struggle to find anything that has already been done before! ;-)
Note that this can be both a blessing and a curse, though. Too much new stuff could overwhelm the player, which is something you should try to avoid. Maybe make the parasite-Zerg play a little more like normal Zerg and the robot-Terran a little more like normal Terran, but at the same time that is something you should decide yourself. I am just trying to be helpful and honestly I am still processing your first commander post.^^