Ohoho, I like this idea, wow O_o very nice, totally not what I was expecting, but in a good way xD I'm all for this one! I think somewhere out in Wild Space sounds good, since they'd be trying to avoid detection. And after all, there's bound to be other planets besides the True Sith homeworld, right? xD Maybe even just a small and remote moon somewhere lol

So these new fleets would come from a totally different system not under the control of the Republic or Empire (or whatever they decide to rename it to when they band together, maybe the New Empire or some other amalgamation of the two current ones' names? idk xD)? Perhaps an off-shoot of the Rakatan society from that beachy planet whose name escapes me? xD Then they could be slightly more technologically advanced than our newly founded government, not necessarily with technology that feeds on the Force like the Forge did per se (because that proooobably wouldn't work if Ari and Bol previously would have destabilised/re-shaped the Force to help True Sith guy (whose name I'm sure you mentioned before but I also cannot remember atm for the life of me xD)

and would Aria and Yerbol and their new followers kind of leave this new government to it and sort of 'lurk & watch', waiting for instructions from Sith boss man or would they be actively trying to help or hinder said government officials? Perhaps the government, despite not being keen on their whole movement, would be forced to actively seek them out and ask for their help in pinpointing the origins of these strange new fleets? 

Or is that getting too far ahead of ourselves for the time being? lol