EI-BUD
Not really, given all the reports that "stobart have lost the franchise agreement". Otherwise it would be worded "stobart have lost the main part of the agreement, but still might pick up a few routes".
And BA is not exactly a good example - their franchise partners operate in completely different markets.
Aer Lingus have never previously had multiple franchise partners, so what makes you think they're suddenly going to start having multiple partners now?