I think that FFG would play test this and there won't be some massive exploit with round effects. It's obvious that FFG likes the tweaks they made to the Descent system for IA and it was well received by the masses, so they will forge ahead and if you don't like it well you don't have to use the app that is the beauty of it. It's hard to discuss and argue this mechanic on a Descent forum where the majority of people have not played IA to the extent that maybe some of us IA first, Descent second, people have. But from someone who has played both I can tell you that I think the IA system is superior in both mission progression and strategic challenges. And we can argue this until we are blue in the face, but that is how I feel. And I think that MOST people who have given IA a fighting chance and play it regularly will agree with me. I know it is hard to accept change, but I highly doubt FFG will leave you high and dry with certain abilities unexplained, there is always a way to fix things. BUT, there will definitely be challenges against an automated AI, one of which like others have said being well which space do I move to if it just says to move 4 spaces away? This is something that I am sure FFG is working on, reading about here on the forums and is play testing to tell us about in a future update.
The sky is not falling, there is still a lot they need to reveal about this app before it launches and I will wait to pass my judgement until then. It is definitely fine to speculate and raise concerns, but I would hold off on damning it to the abyss based off your interpretation of an un explained rule or mechanic.
Oh you can count me decidedly on the side who is very enthusiastic about this app. I cant wait to try it out!
My only concern with alternating turn structure is, as stated, any change that may upset the balance of all the class/monster skills already designed for the game as is. As long as nothing becomes to OP or Nerfed and they keep round integrity then I'm sure it will work fine and just add another layer to whats shaping up to be a fun new game mode.
I have yet to play SW: IA, it looks really interesting and I'd love to try it out. I'm sure the alternating turns make for an interesting change in strategy.
I'm very open to the idea of playing a co-op dungeon crawler type game mode using descent rules. The PoD co-ops were lots of fun. The fact this app plans to support more co-op adventures, a campaign system to link those adventures and support for all expansion we physically own is just plain awesome.