If you signed something accepting the ROS I think you're stuck. If not...
The move to the new pension scheme doesn't mean you lose anything. You keep everything you have so far. Everyone is in the use boat. Your situation is not unique so not sure if you personally would be able to successfully argue a legal one off compensation. Why not use your current assured income and currency to get your full civilian licence and start planning for a PVR (ET in modern terms) to coincide with the end of RoS. Getting your licence whilst being current at work has got to be easier than trying to do it after you have stopped flying.
And don't bet on T&C being better in the real world. You'll probably be disappointed.