Not quite sure where bmibaby would expand to, as with the exception of the French routes, all of WW's destinations are served from EMA - I'm guessing they'd either make a move into bmi territory, relaunch some routes that were dropped when bmibaby began their massive expansion into other bases, or might go for something completely new.
Ryanair seems the safest bet for new routes this winter. Whilst all routes are doing well, the Polish ones seem to be doing incredibly, so it wouldn't surprise me if further Eastern European expansion was on the cards.
Any more news regarding Menzies?