Flybe's problem is that it wishes to remove all 9 Embrear 195 aircraft from the fleet immediately. Unfortunately all are on lease until 2020. The fleet at the moment is 15 aircraft too heavy, 9 embrear are already planned to go, plus another 6 aircraft.
As for who would buy them well investors will have lots of different reasons and maybe we might get surprised. Just look at Icelandair and WOW. Personally i think in the long term they might be wise to develop a relationship with Ryanair and do what Air Malta will do and sell flights through their website as well as it would give them exposure to a lot of customers who might not neccesarily look at Flybe.