Bambi is correct.
The US GMs and PMs collect ideas and send them with their own priority ranking to the devs in Taiwan (X-Legends) where they are given priority rankings again. This would fall somewhere on the very, very bottom of the priority list and will probably never ever reach the top, as the community constantly demands new updates, which gives new bugs, which need fixing, which get priority.
In other words, core features in the game will never ever be changed EXCEPT if the change was already planned in a future release. The dance animation will, again except the change was planned a year or so ago, never change.