Greetings, Kinnies!
Update 14 will be released on July 14. That is just a few days away.
There were 4 builds or test runs on Bullroarer. It was Open Beta, so there were no prohibitions in place. Players were free to chat about it, make videos, and whatnot, so they did. There is much information available on this update.
Go to Lotro Forums, scroll down to the bottom of the server list and click on Bullroarer. There you will find the patch notes for the 4 builds. Be aware that these are not the final patch notes and that there may be some changes to the final product, but it will give you some idea of what is in store. There are some interesting things in those patch notes, so please read them.
~Lerillos