Sure, sure. Go for it.
I get what your saying. Your talking about a "guild-like" setting right? Honestly even as a kid, I've already got that feeling from the original Pokemon anime. I can still remember Ash & Co. sleeping at the Pokemon Center in the Charmander debut episode. Honestly that wouldn't really be much different from past seasons unless your talking about a few centralize Pokemon Centers.Or maybe instead using a mobile hub like you said, Ash and the new cast just could use their feets to get from one location to another location and just use the Pokemon center as the hub?