I have not done much of the test realm myself, but I have helped friends do test realm on Empryea and you can find pictures of what the world looks like on my Twitter. The new world so far to sum it up, it pretty much features from a wide variety of characters that we have seen in past worlds. For example in Empryea, it has the goat monks originally from Mooshu. I have also seen statues that look like the ones seen in Khrysalis, along with other characters which really impressed me how they combined them all in one world kind of like what they did in Avalon back in 2012.
The storyline is also quite exciting with the ship at beginning I mean that ship even had a lavatory I mean thats quite fancy. Overall I'm really impressed with the new world, and you should be as well :).
More posts coming in the future