Based on rumors and leaks it's very possible. As insiders claim the IP's will be farmed out to other developers. InXile is supposedly working on Fallout 1 and 2 remasters.It certainly isn't impossible. There is nothing to say they couldn't have multiple concept or pre-production projects going.
My list is from early 2021 there has been many changes since then.If you saw couch's post it sounds like there is a 5th team with a small number of people also working on something yet unannounced.
I have always discounted it though because Brandon Adler is the game director of TOW2. Given the size of the TOW2 team it is very unlikely he is managing another project and I have seen nothing to back up that so far.
It also says Carrie Patel is the game director of TOW2 which is incorrect. Carrie is the game director of Avowed. Given Carrie did a significant amount of the writing for Eora/PoE2 this always sounded suspect to me.
I believe Chris Parker is not running any games at the moment. I imagine the role of COO is now significantly more time consuming than it used to be given the size of Obsidian now.
Adam Brennecke is running Grounded which only leaves Brian Heins to be leading something else. Brian has done Tyranny and that is it. I somehow doubt they are giving him another new project
Grounded is a Co-Op game you can play solo or with other players, but yep an MMO according to Joxer. He still insists that Wasteland 3 is an MMO because of Co-Op.Most interesting. I never really looked much into the game except for a few minutes on youtube. I had assumed you were playing in a world full of other players.
From reading the games site it says it is for 1-4 players.
I imagine it will have some form of housing - although with Obsidian I think there is a fair chance it will be some kind of Stronghold/Base. A ton of their games have had this i.e. NWN2, AP, Pillars 1/2, Tyranny, TOW etc.
I think it would be nice if you could customise your strongholds appearance as well as it having some kind of functional use i.e. adding a forge, shop keeper etc. Put in armor/weapon racks and store rare trophies etc.