I think it would be nice if all the maps are free for everyone. Everyone get unlimited tokens. Other Risk games in the app store have all their maps available, and you can do unlimited battles, that is some of the many reasons why they are also rated high. I believe one of the other Risk games in the app store is rated .1 better than Risk Global Domination.
I mean yeah, if this change does happen they'll have to change a few things, like premium. Maybe change it to a donation, people can donate to the game/devs.