This may seem premature but it does seem to take so long to thrash out a venue and date and to get the best value tickets (and cheapo hotels) it needs to be done 12 weeks before the event.
I've come up with this list of places :-

Lancaster
Macclesfield
Newcastle
Durham
Sheffield

Two left field suggestions:-
Chesterfield
Chorley & Leyland

I hope others will come up with more ideas. I'd like to see an area of Manchester that was away from the City centre.