...well, techincally, we'd also be giving Laxus and definitely Gildartz that title as well. I think you have to be nominated (someone else puts your name into the hat) to be considered. Gildartz the Walking Catastrophe surely won't do it (he probably refused it earlier too), and Laxus was probably too much of a jerk before to be considered as well (he probably didn't want it either). Erza just might refuse it too. I mean really, even if Jelly's Saint title was revoked, that would mean three known Saints are in Fairy Tail - A bit much, even for them.