How long after ROS you guys leaning? I'd like to go somewhere around 50-100yrs. Some period where we can just say Poe/Rey/Finn are long since deceased and can fill in with whatever. Something that conceptually gives the NR time to reestablish itself and possibly grow in to something that could be characterized as the stagnant behemoth the Old Republic embodied in the TPM days and earlier.
As far as the story, rather than peg something as specific as Last Star Destroyer or Eye of Xim in title and all that, maybe just choose the time and let it rip. If either of those angles are what you want to write from/at, go for it. We should maybe start at a more basic level though like, if you want a SD with a planet killing laser, you have to write all about getting/finding/acquiring it. Then maybe others are writing about their knowledge of you and trying to figure out whats up and disrupt that, and then once you got the SD and take it to a planet, well by then you've got your Last SD story and it all came about in the natural order of co-op story telling and on it goes?
I dunno for sure, thats just my thoughts right now. I know I just wanna write though! Have been thoroughly enjoying the back and forth with Grey so far. A larger collective could only be even sweeter.