Well Now that SE confirmed that we are getting the essences of the Primals. there is NO reason why we cant have Bahamut now! Or atleast make him the Summoner Limit so all the complainers saying that Bahamut is to strong for Summoners to have.

Like ive stated before Bahamut should be a harder relic equivalent to obtain. Which would involve having to actually fight him in the end of it like in Most FF titles you fight him you get him.