From what I see, B6 can't get right what they have right now: two consecutive years of losses, removing seats (again) because they can't figure out how to profitably fill them with pax, E190 still isn't up to where B6 wants it to be, returning planes because they can't find enough flights for them.

Taking on another plane now is not what B6 needs. Basically, figure out the existing business model first.