The pay deal is on the table, a full and final offer. TSSA have accepted it, ASLEF is considering it, RMT are still striking. The pay deal is what it is, especially given the 5% offer to NHS staff today, that's the best that anyone is going to get.
There is possibly movement on the backpay, ie push the backpay date back to get a bigger sum whilst keeping the percentage increases the same.
I agree with the above, this is the RDG (Government) throwing down the gauntlet. Change is coming whether the unions or the staff like it or not. Government is playing hardball with the RMT and vice versa. Changes will be consulted on and potentially brought in with or without the RMT, what's the worst that can happen? RMT members go out on strike?