I would like to see more time based events, like getting so far and having to camp for the night and you can cook a meal that will restore your health when you use a tent at any point in the game, because it would make the game seem more real. I would add a few features such as fatigue, and a team swap system like X has because lets face it "it would be to unsafe for all of us to travel together" is a load of bulltrout.

I would also like to see battles ON vehicles, like if you were on the buggy the random encounters would take place like they do in Wild Arms 3.

I would like to see customizable outfits, not just one but many, like Lightning Returns but without the stat differences, purely cosmetic.

I would also like to see visual weapon improvements on Tifa's and Nanaki's weapons.