@Terhonator: Well, is there a way to check to see if the map exists? If so, then it might be possible to set it up as a local thing then maybe, just to make tournaments a little easier to set up... O-o I don't know... XD It'd be amazing if you could load a map off of b.net.
O_O I wonder if you can use a non-local path.
I found http://www.hiveworkshop.com/forums/starcraft-ii-editor-help-zone-647/cant-load-next-map-cause-cant-log-165512/ while looking on the web showing the Game - Set the next map to "Maps\Level2.SC2Map" trigger. I wonder if you can change the Maps\Level2.SC2Map part into a URL for non-local maps that can be updated... Only thing is I think the bank variables are only stored locally and are textmode based, so they are easy to edit.
That'd be pretty cool to be able to do, and would probably be pretty easy to implement. I'd just have to make a configuration tool or something to modify the map pool. Maybe add special restrictions or something... O-o I don't know XD.