1) Rumor has it there is Beta testing on Cities...please do not let this happen, it is a feature for a farming game. It would take away from the structure of ops, having to direct 1,000,000's of troops to cap a city.
2) With the garbage diplo that happens every server, might I suggest limiting alliance diplo, by this I mean (for example: 1 Orange, 2 green, 2 nap, unlimited red). Accompany this with features that only allow a player to attack red or black, support can only be given to orange or green. I can go into more depth on this to account for recycling and taxes, etc. But this is the broad strokes, it allows for more wars and less server war garbage.
3) Alliance size limits, similar to BW's 50 tops, on all servers
4) A training wing status which expires after 6 month from server start, that way Alts and farmers can't claim TW status after a new server has started. They cannot support or attack anyone during that time.
5) ANALYTICS!!!!! If you are going to prevent 3rd party analytics then please improve yours. In depth player history (alliance changes, name changes, long term 30+ days activity), Improved mapping (I want to be able to see the whole map on my phone to compare alliances vs. alliance, alliance vs. Player, player vs. Player, multiple alliance vs multiple alliance) even if it blurs a bit. Tavern Brawl was brilliant for that, and you've taken that away from us.
6) Ingame photo sharing
7) The ability to spice up your personal player profile, similar to the alliance profile, including avatar/picture
8) Make all versions/platforms equally android vs. Apple vs. Browser