I think there is a much higher chance that 1 team out of 32 sign him for publicity, than all 32 teams blackball him because he's gay. Even if not for publicity or profits, to be the owner or organization that supports a very public issue right now.
There's also a decent chance he gets a job for purely basketball reasons. An analysis on that.
http://fivethirtyeight.blogs.nytimes.com/2013/04/29/jason-collins-breaks-a-barrier-but-will-he-find-another-n-b-a-job/
I don't know the guy personally, but I find it highly unlikely he is doing this to sue. Will he benefit from the publicity, even if he isn't in the NBA next year? Yes. Is that why he did this? I doubt it, but again I don't know the guy.
There's also a decent chance he gets a job for purely basketball reasons. An analysis on that.
http://fivethirtyeight.blogs.nytimes.com/2013/04/29/jason-collins-breaks-a-barrier-but-will-he-find-another-n-b-a-job/
I don't know the guy personally, but I find it highly unlikely he is doing this to sue. Will he benefit from the publicity, even if he isn't in the NBA next year? Yes. Is that why he did this? I doubt it, but again I don't know the guy.