All that's really known, is Jude Law is the lead. And that it's in the Mandalorian/Boba-Fett/Ahsoka post-Jedi timeline. This probably replaces that "Rangers Of The New Republic" one that died. https://www.darkhorizons.com/jude-law-to-lead-star-wars-skeleton-crew/
wonder if this has anything to do with the five padawans that escaped at the beginning of Kenobi? also, Jude Law is about seven years older than Katee Sackhoff. 50 Quatloos says that if it's Mandoverse, he's playing Fenn Rau