I tested disconnecting and disconnecting in water but it didn't worked for me. I must say that I found it by coincidence, cause I just wanted to try if I can land on northrend

after I found out that I can mount now, I tested the normal disconnecting and disconnecting in water. Nothing worked, I still couldn't mount and the first time I was back in normal world. The DK that was with me, tried to fly to eastern kingdoms and could mount also after it so we thought that was the way :s I will try it again tho.