For what it's worth I think Jet2 would have announced by now, if they are opening a base at Liverpool.
It's now September and seats have been on sale now for 2013 in their other NW bases at MAN and BLK.
If LS is coming to Liverpool, they had better get a move on, as EAZY and FR have had seats on sale for a while.
IF 160to4DME is right and there are clauses to protect EAZY and FR (Which makes sense), then I can's see FR coming at a disadvantage. I could very well be wrong though, just my mind ticking.
Over WIZZ - I have seen nothing on the net or online press, that they are leaving Liverpool.