I remember when /fic/ was trying to argue for moving here and it was kind of a mess, and them splitting into two directions pretty much killed their board more than anything else. I remember saying that we'd help them and such here however we can if they moved here (but apparently that never happened or something. sorry guys), but that if they did come they -had- to get their shit together first. That didn't happen, and it predictably divided into two diminished camps.
I have more or less no confidence in the communities ever being brought back together, and in all honesty I don't see how because MLPChan has become a sort of mishmash of cultures from other places now rather than the thing that splintered from Ponychan back then. The original culture that took up root here is muddled and gone, for better or for worse, and what's left is something that would want nothing to do with Ponychan. And for a lot less good reasons than the people that originally came here at that.
I expect both sites to sort of drift along after Ponies finally end, regardless. Eventually, though, people are going to get sick of paying for hosting and they'll have to go away.
It will be a sad day