it's not really accurate to just call it a "patch" though, it's going to be the complete or definitive or whatever edition of the game with the dlcs included. those come out all the time but devs don't usually put those together for free, even if the new complete edition is given out to the owners of the original version at some point. honestly this rerelease probably needed/needs way more work than many other complete editions just because of how horribly broken the base game is.
like it's not about anyone being forced to do something like this, like i said i doubt anyone could've stopped Mike from working on it, it's that it shouldn't even be a question that people are compensated for their work regardless of how passionate they are. agreeing to it doesn't make it any less scummy and exploitative on the part of the bosses. but that's kinda going on a more general tangent so im gonna stop here and just hope everyone's treated fairly at Volition.