Good they should change things. Materia should stay but characters should have something beyond limits and minor stat differences to differentiate between them for one. Like many remakes we need more party members. Avalanche temporary party members would be a good start that'd allow the early game to have stronger enemies and bosses. Reno & Rude during Wutai. Perhaps if they introduce some new boss characters one of them can be a secret party member. Party count should go from 3 to 4 as three is too limiting. Half experience for those not participating in battle should be scrapped to full experience. More endings like having Cloud die when he is a vegetable (or instead of die have him remain a vegetable) and thus continue the game completely different, Shinra ending where they successfully defeat Sephiroth and continue to rule the world, the damn Genesis inclusion ending you know they are putting in, the Sephiroth wins ending, the goddess from Crisis Core smites Sephiroth ending, the Gilgamesh pops out defeats Sephiroth and challenges you to a fight for the Buster Blade ending... more endings is a good thing.
Changes aren't necessarily bad people.
Changes aren't necessarily bad people.