I wouldn't bank on BE being of much help.
Despite talk to the contrary they have not expanded at MAN either with frequency or routes. The fact is they have retreated.
"Europes largest Regional" airline as the call themselves seem to want to be less regional and it is clear that they now have other fish to fry and are going to be concentrating their efforts at LGW. That is where the expansion is going to be and not in the regions as recent developments have shown
I could be wrong and hope I am wrong but they have so far done little for MAN in my opinion