They do have a brainstorming session and all that, but isn't he also the franchise owner or something?
No and Yes. Loren Coleman is a partner of InMediaRe which to my knowledge still owns Catalyst Game Labs, but Catalyst is not the owner of Battletech. Catalyst licenses Battletech from Topps, the card and game company, along with Shadowrun. Topps acquired Battletech from Wizkids who had bought the line from FASA. Now here is where I probably am going to go a bit too insane. Topps is partially owned by Michael Eisner, former Disney CEO and a 1000 times better one than Bob "AntiCreative" Iger, through the Tornante Corporation.
Video Game rights are a mess for Battletech as well. Essentially, they belonged to FASA who gave to them to FASA Interactive, a subsidiary. FASA Interactive got absorbed by Microsoft. Microsoft eventually sold them to Harebrained Schemes who was owned by Jordan Weissman who formally owned FASA. And then they got bought by Paradox.
So in short, game rights are owned by Paradox. The development of the original line is licensed to Catalyst. But ultimately, the full power of the universe belongs to Michael Eisner as Chairman of Topps, but he probably has no idea that Topps owns it.
And no, I have no idea who owns the chain of title for anything involving live action or animated properties for Battletech. Considering the insanity of Saban Entertainment's contracts, and the the fact that most of their animated titles from the 90s are in a Disney vault thanks to the acquisition of the original Saban Entertainment through Fox Family Channel in 2001 by the Disney Corporation. I'd imagine that Disney somehow owns them, and doesn't even know or really care as they are too busy remaking perfectly good animated movies into bland live actions movies for . . . reasons. So that is speculation there.