"Could" is kind of a hard question to answer. Bellator intended to have Rampage/Tito main even over Alvarez/Chandler, didn't they? So I don't think the commissions would necessarily stop it.
But Dana has gone on record as saying title fights will always headline just within the last year or so. That came up a lot when Ronda/Carmouche was main event over Machida/Hendo and some people got upset about it. (I don't think he said it in regard to that situation, but the quote was brought up a lot during that whole debate.)
Sure its hard to answer, thats why Im asking it. Nice, I never seen that quote or interview/ presser. Thats what Im lookin for man.