blu got talked about as a concept in a recent interview and yoshida was considering how it would fit into the game, so its not gonna be blu just yet, yosida came out said he liked the original trilogy with sam director, theyre properly not adding 2 dps and nothing else that would be stoopid, the "slip up" tweet saying only 2 jobs, like they removed it within seconds cos it was a MISTAKE like if they accidentally leaked it was gonna be 2 jobs this xpac ONLY then why not just let it ride like oops we fucked up but there we are, so im going with 3 jobs, ppl supporting the blu theory cos there is a ton of blue mage references in xiv like names and stuff from xi, that already got confirmed in an interview a while ago that there was no connection directly like that just happened to be like that