Eureka is fine, except for how Pagos was implemented. It gave us a new zone almost every patch. If they do a new "Eureka", they should put something for gatherers like they did for Diadem, (and by extent crafters for the rare mats they can farm).

I would like to see Materia be relevant in upgrading. I have T5 for days, though it may not be fair for newer players who didn't amass a stockpile. Maybe use materia to feed light steps.