Considering the sophistication of the client, I'm kind of surprised that we have only had one implementation of a platform/jumping game mechanic, and that is in the Gold Saucer.
Actually, I'd like to see them make use of some of the mechanics that they've introduced in minigames, in their dungeons. For example;
- you have to force a door, use the mechanics of the punching game or the 1.x gathering minigames,
- need to make an area difficult to get to, use the platform/jumping mechanics,
- need a physical puzzle, use the dance mechanics from the dancing GATE event so you have to repeat a sequence of emotes,
- trying to get the key to work, use the Moogle grabber game where you have to line up on the target on the X and Y axis
- Need to trigger an even with items collected along the way, use the basketball toss mechanic minigame and get 4 out of 6 in on target, or go collect more from the mobs (that will respawn...never understood why monsters in FFXIV dungeons are incapable of respawning, and almost never patrol...),
- use the sliding puzzle mechanic from the toy box minigame to decode a door entry code,
There is a lot of scope here to use all these different mechanics that they have already implemented. The mechanics that already exist in the game can be used differently, the mini-games are not a wast IMHO because those mini-games could be built upon for use in regular content.
Heck we already have meta games using the jumping of our characters when we try to find ways onto the roofs of houses, or find difficult to access ledges in More Donuts, and other locations.
It goes both ways, flight brings a new element to Chocobo travel, so why not have flight based races, or races that use ground and flight modes, and even a bit of jumping/platforming?
There is a lot of potential, but I am concerned that the speed, speed, speed efficiency over everything mentality of some players may have convinced SE that sprinkling in things like the above ideas would be a bad idea.