I'm not sure how valid or expensive these changes would be, but it might improve the game play, increase profits for the developers, and promote more competition between clans.
1. Create a unique account code for each player so that transferring from one device to another is quick and painless. Maybe transfer even from Android to IOS since IOS is by far the better gaming platform.
2. Increase the amount of gold back 3500 (does not have to be subscription). For example Google charges $99.99 for 2800 gold. It should be increased to 3500 so that VIP would much more desirable.
3. Make those event tokens and robocoins more accessible - maybe buy with gold.
4. Clan Wars - there's got to be some way to promote more competition between clans. Hitting your first 3 matches and then waiting 40 min each for the next two is hard to do. Its like being in a Motor Vehicles Department line. Suggestion:
A. You got two hours to kill as many as possible using your energy - this way your not waiting.
B. Each clan match is worth the same amount points - the more wins in matches increases the points.
Thats all I got for now....just hoping to increase the fun.
one last ting....the glu developers should do a monthly webcast for updates and showcasing their new regions and weapons!