If a Native client was a serious consideration it would have happened by now.
On the bright side the wine wrapper route is at least a lot more viable on M1 compared to the state the game was in on older Intel Macs that were lacking discrete GPUs.
A truly native client to allow the game to run on iOS would be an interesting proposition but I just can't see it happening. It'd need considerable investment and manpower, both things that go against trends we've seen in FFXIV's development. Not to mention there's the App Store cut to contend with as well.