I speak this personally, not from the staff's mouth. I'm the pizza... not the staff.
I also think settlement/exploration RP would be fun and exciting, but my first concerns would be that it wouldn't last. Not the excitement of the RP, but that RP in general... namely settlement. I believe folks will run off to settle areas as quickly as possible. Exploration I believe can happen with or without region additions. I drool when I see dem rocks. I wanna walk everywhere. This can likely be implemented into RP among everyone...
Secondly, about moving regions and making them blend with the new map. I hate speaking well of myself (such a bad quality in a marketing student) because it feels arrogant. I dislike that. Nevertheless, here it goes. I love building according to the land, not that I always do so, but when I can I do, and I like to think I'm good at it. And when I don't build according to the land, I tweak it so that it looks like I did. When it comes to region transfers, I believe I'll be able to help with this greatly. Will it be easy? Hell no, and it'll take time. Also, from what we've seen, this map creator's talent is superb. Would I be able to do that? No... but I'm a replicator. If I see something, I can often mimic the form. Normally I try to add my own twist because copying is lame, but with this I have hopes to be able to do so at a passable level. Won't know until I try, but ya.
As for removing regions... I don't think I could suggest doing that to myself... so I wouldn't expect it from others. The funding gone into Grafjell is extraordinary...but its radiant value to me is irrelevant in comparison to what I and several others have created there. I'm tempted to branch out and try a build somewhere else, but the Grey Isle has been my core on this server. 3 years? I still haven't eradicated all the dirt.