The Stukov thing wasn't a big shock to me. He comes back in some dlc or extra map or something that Blizzard came out with
http://starcraft.wikia.com/wiki/Alexei_Stukov. Moreover, if you select him enough he explains how he's still alive.
I could see them making Amon and those guys so they won't have to choose a victor out of the three main races. I mean I'm a Terran guy so I want them to win but everyone isn't me. I think they might be trying to please everyone. I also felt Iszha voice wasn't quit Zergish either.
I enjoyed it well enough but I did like WoL better.