They aren't out yet, if you mean the Dragon Tombs. But, the End has been found on all servers. You can't beat the Enderdragon anymore.
It doesn't seem to be their top priority though, if nobody's talking about the right after an update and when there's a new world for shop, and 2 new portals in spawn, It seems kinda obvious
It may not be top priority, but I'd rather they get all the bugs and lag out before dropping the portal on us just to have us all crash out and lose or whatever. Sure we might not have needed a new /shop as some people have complained, but if they didn't make changes it would all be boring. They're adding the new Wastelands and Wastelands nether for all the people who are too lazy to make trips out to gather stuff and so those who live in the wild don't lose what they've worked hard on. They're trying to please everyone and not lose members or cause drama.
Well, you have to give credit where it is due. The 1.5 update came out much faster that previous major updates, and they snuck in a hardware update in the process.