Not for at least another two years - let the dust settle for pete's sake, they would just be 'cashing in' otherwise.
Besides, I don't think 'State Of Shock' is good enough - at least not the versions I have heard. IF there is a more 'final' vocal in the vault then it could be eventually reworked into a great song, but not in it's current state and not YET.
TMBMTLTT is a fantastic song, and if there is ever gonna be a release , THIS is the song that should be worked on and released, but again, not for at least a couple of years. Perhaps around Freddie's twentieth anniversary it would be more appropriate, poignant and better - timing wise.
If you're searching out for something,
Don't try do hard.