Jet2 does have a slightly more 'quality' service especially the staff on the ground and the extra legroom options... also unique is the 757 to Canaries. I doubt easyJet would want to take over any of that. It complicates their business model.
However it would be ideal for this reason:easy have soooo many aircraft coming, to take an airline over (with complimentary routes) would be perfect - they then have a good reason to deploy new A319's - a back up option if new routes are scarce.