VadersMarch might be onto something. I'd love to see a "comics" wave sometime.
It'd be pretty rad for Scum to get Krrsantan as their first big wookie guy. They could throw Chewie into his acquisition mission- big guy doesn't get much love these days.
Doctor Aphra would be an incredibly interesting unique for the Empire- ranged, stealthy, maybe support or gadget oriented and... CANON! Plus, her acquisition mission could feature Vader as well.
I don't know a ton about the Rebels during this period since I've just read Vader's run, but... Sana Starros, maybe? I could see her mission as an interesting one to bring Han in with...