The later flights have 4 digit flight codes which seem to be the same format of those operated by Stobart Air, and indeed a test booking shows "Operated by Stobart Air". Whether or not this is replacing any of the European routes is unclear.
That is better news but it's about time they made a proper announcement as to what's going on and the fact that these flights are bookable through Flybe as opposed to Aer Lingus.