PX: What building would Ho-Oh be doing that from? A TD facilty, I assume? Can work out how he gets captured, and how he manages to escape because of an accident that occurs, but you're gunna have to talk with the others about having maps look completely destroyed for a bit. Maybe do a cut-scene showing how damaged everything is - Make only one town accessible for some supplies an for NPC's to give advice on where they saw Ho-Oh fly off towards. Celebi, of course, will come to save the day and heal the player's Pokemon - Then while the player is dealing with Ho-Oh, Celebi is restoring the rest of the region.
You can make Ho-Oh possible to capture then, or later on. Just have him be a powerful boss or something that can be caught some time after the Elite four, maybe? Got an idea that could be done where the player ends up underground in a large cavern, filled with tree's and underbrush. Can have a tribe dedicated to Celebi down there and a final fight between TD's Elite hunters and Xanor(Maybe not? Always a sequel ;) )
Within this enormous forest-filled cavern would also be many rare Pokemon on the surface, all the Pokemon in the hack that they can't get anywhere else. Disdemon suggested that there be a way to get all of the starters during the game, and I can work that in as different mini-events around certain town's. He'd also like to hold a vote on how the player gets their starter: MD(Mystery Dungeon) or the (More?) normal way. Not sure if he read what I had posted yesterday and meant that or not.
Question about towns: What kind are we gunna have? As in, what's going to be within them? It's fine if it's not known right now, just thought to try to get ahead on some side-quests and possible events IG sooner.