IMO I think if BE go into CWL with a rapid expansion plan (Which I think they will) then BMI Baby will pull out almost entirely within 2 years. Given they seem to be focusing more on Brum, have struggled with selling Polish routes and not capitalised on a potential monopoly on the lo-co market in recent months.
If I am right then it will be Flybe with the monopoly and they will dictate who Cardiff can and can't have as they have in EXT and SOU. This is one reason I personally think they fell out with BRS. Easyjet were the big boys and BE couldn't contend with Oranges' buying power. It doesn't take a rocket scientist to see that BE like to prey on small regionals like CWL, NQY, NWI who are looking to expand and make them sell thier souls to the devils! All airlines do, but airport management should be carefull who they choose.