Anything come of those rumors that LiS4 is a Max/Chloe continuation?
Sadly nothing yet. I don't think we'll get any substantial leaks until the project is in the later stages of production. Just like the leaks for True Colors.
However, I do have some idea of who is currently working on LiS4. Going off new hires in 2022 and established crew still at D9 that did not work on The Expanse. (As well as those who sadly had to leave D9 and the project to protect less senior staff.)
This is all assuming D9 doesn't have another Telltale project or something in the works too.
Jonathan Stauder? Has to be game director. He's the only game director I know of working at D9 with an unannounced project. Interestingly enough, he directed Batman: The Telltale Series at the former Telltale.
Felice Kuan? Definitely has to be narrative director for the game. She was a staff writer for both Before the Storm and True Colors.
Mallory Littleton? Former lead narrative designer on the game. She left during the layoffs to protect less veteran staff. She was a staff writer for both Before the Storm and True Colors.
Deandra Warrick? Lead writer until she left during the layoffs to protect less veteran staff. She was a staff writer for True Colors.
Aysha U. Farah? Former (staff) writer on the project and now lead writer after Warrick's leaving.
The rest of these names are likely staff writers and/or narrative designers on the game. (Historically D9 doesn't credit narrative designers on their games but often they get credited for writing).
James Wright
Elizabeth Ballou
Giselle Francis