Two things I can talk about in this thread.
1- The client is not the brand new client that's being rebuilt in Unity, but instead a refresher of the current client that everyone is running already that will (hopefully) fix a couple of the major bugs that PC players and iserver players alike have been experiencing.
2- Creating levels on an idevice is a pain in the godamm ass, cause I got me some fat thumbs man idk about you. Real talk though, my fingers are pretty long and thin, but I still find issues with the tools just experimenting with the little changes I've made for just myself to try out.