For those of you in Europe and other less litigious societies, be aware that in the US you can file a suit against anyone for any reason. Whether it is accepted by a court and goes through trial is another story entirely, but the suit can be started. Leaving that aside though, I think that there is a good case to be made for at the very least an injunction against Autodesk dropping support for the product in two years. They could be compelled to at least support it for, say, 5 years. As evidence, studios could speak to all the time and manpower they have had to spend to build their production pipelines, as well as the various statements from Autodesk until recently that everything was just fine with Softimage.
Also, suing is not the only option I mentioned. Boycotting Autodesk could also be used or threatened, to make them at least prolong this process more. If suing doesn’t work, there are still boycotts, and just generally making it clear to everyone possible just how bad of a company they are to do business with.
Finally, both these options, as well as planning and executing alternative solutions to transition and keep business running can all be done at the same time.
I didn’t use and didn’t see anyone else use the word b**ch, or anything else of that nature, like a couple of people above have alluded to. But I just don’t understand why any individual or company would just say “OK Autodesk, here, please take my money for some other product that I don’t really want, even though you just killed the product that I have depended on and built my life and business around for 20 years” without even raising a finger.