I also hope they'll give gyms a makeover. Apparently, when your faction owns a gym, it's "training" rather than "attacking" when you engage in a fight. However, there's no benefit whatsoever from this supposed training - unless you have a lot of potions to burn, there's literally nothing to do at gyms for casual players. I assigned one of my (then) highest level Pokemon to a gym so it would help defend against opposite factions, only to have it returned to me almost immediately beaten to pulp. No reward or CP gain for trying either then, ha.