The big deal here for me is asynchronous play! So I can take my turn, close the game go on about my life while my opponent takes their turn and I can come back later after they have moved?
https://www.gamespot.com/articles/advance-wars-devs-talk-enthusiasm-and-challenges-o/1100-6450410/That's quite the list. Never played the Advanced Wars games sadly (and since Nintendo refuses to continue with it, I probably never will, but still super excited for this one.
Yes. Like Civ or XCOM.
To be honest the only system I remember using was Words With Friends, used to run as many games as it allowed at once.