They've been talking about making new music on and off since 2009. I'm not buying their claims until I see a press release or something substantial and definitive.
Also, even if they do release an album, will Jermaine and Randy be involved? Jermaine hasn't toured with his family since the pandemic (apparently he's anti-vaccine?) and Randy has been sticking close to Janet for the last few years.
Speaking of which, Lifetime already announced a follow-up to the Janet docu-series from a few years ago, and they mentioned that it will involve getting the whole family back together on stage. Will that be completely different than what the brothers announced? If so, then we'll just be oversaturated with Jackson family docu-series soon (the brothers' show, Janet's Lifetime show, and Taj's "Re-Righting History", assuming it ever comes out at all.)