It’s not a bad idea. Not only is it a cosmetic, it has a use. It’s not like you can exploit the game using an elytra as you can only glide with it.
The only laggy part would be the 3D models of the cosmetic itself and I doubt many people would be wearing it (because it costs $30 lol). The actual elytra itself wouldn’t be laggy.
Overall, this probably won’t be added but it’s a nice idea and I’m hopeful
Yea I think if more wings are there coming then no if no more than yes because this is only got by 300 players and we don’t know the exact number of sales so let’s say 350 so 350 in 10,000 you can see one so I don’t think it’ll be that much lag