Hope it will work out, but...
If you take a look at the route map.
Groningen has never worked for regional ops in the past. Only BMI has an high yield to Aberdeen that works out. Flying and from Groningen en Munster to Stockholm will kill both routes as they are to thin.
And todays PAX are crazy enough to drive 1,5 hr one way for 20 Euro cheaper tickets.
Same for Southend, not any unique destinations for London so it will be hard for them.
Also the team-up of Jetisfaction (operated only for few months out of Munster, crappy perfomance, check German newspapers) and GLM (virtual start-up from Groningen) is risky.
But on the other hand, if the 30 MLN would be in place, flying for a few seasons is always good!