Here is what GW has officially released about them
And here's what the Internet has on them
New pictures via La Taberna Du Larana The joins on the Phoenix look really bad.
Faeit 212 also has a host of rumours, including things straight from White Dwarf
So, which is making you more interested in the release? The video, or the pictures of the models, and the rules? I really do hope these leaks are part of GW's marketing strategy, as given how quiet they were able to make things around the Hobbit, the opening back up seems to be being ignored.