Part depends on the leasing arrangements for the Sukhois. I think these will be pretty generous, as they are keen to extend their customer base, and presumably will be pretty much pay-by-the-hour.
Pat Byrne has said they intend to keep a central core of schedules. London City to Dublin is still a mainstream service for them.
They seem to be picking up quite a bit of regional flying for European majors. I had thought their longstanding operation for Air France was ended, but they have had it extended.