At least it's not the Galactic Alliance when it was led by a former Solo turned Sith Lord
I know, it's far cooler
I'm torn over whether I Order 66 the Jedi again or pretend they're just going with it.
Other RPs I've come up with use the Pentastar Alignment's Clone Wars era units to play as any of the following: a group of Republic forces who fled the rise of the Empire, a resurrected Trade Federation and Banking Clan, or combine both side's units to make an unholy union of the former and Separatist holdout allies-of-convenience.
And a simple concept to realise, play FTGU as the Remnant and imagine you're the Remnant of the Remnant on its absolute last legs.