Presumably they'll need a new fleet...E2s maybe? A220s? ATRs?
I landed in Saarbrucken a couple of weeks ago with a few dozens of Flybe Dash-8 parked there, some quite recent, well maintained and already painted in the right colors, so why bother with a new fleet ? They could reintroduced those one by one as traffic picks up later at minimal costs I would assume . Or am I missing something ?