Northern were supposed to be getting 12 (I think) more 319s for the start of the Blackpool service, plus 4 769s for Windermere at some point.
TPE won't get new electric 397s till late next year (and will then lose the 350s).
Northern might get some 331s late next year but the allocation isn't obvious (might not come to the north west first).
So it's 319s all round until something else turns up.
Wasn't there some discussion upthread about the new Alderley Edge (?)-Blackpool service being operated initially by 323s until the 331s arrive?