A new form of transportation, elytra flight paths, have started to become a thing in the Nether. Before the network grows too big I think we should think a bit about how we might want this to develop.
We have moved portals, horse roads and ice roads to near the top of the Nether for efficiency, and I think it's been a success with so many people joining it. So having elytra paths near this infrastructure seems useful.
I'm thinking, we could leave the arrow-only elytra flight paths as they are and keep those as a second-hand network, because they're useful and cheap to develop, but I think if people plan to dig
out and build elytra flight paths, let's find way to make these fit together for all players in a good way.
I suggest we standardize built out elytra flight paths to be developed around y = 85 to 95. This is the top of the relatively hollow part of the nether.
https://d1u5p3l4wpay3k.cloudfront.net/minecraft_gamepedia/a/a7/Block_layers_nether_1.5.svg?version=e80404f0dd47860240566376aeca098fThere could still be cases where actual elytra flight tunnels are built elsewhere, and connections from this y level network to other elytra flight networks.