It maybe not be the best solution, but at least it's throwing us a bone in our way. Hopefully they'll release Rogues and Masqueraiders along with the Ecaflip so we can test them out to ensure that they aren't horribly underpowered or overpowered, but this is just wishful thinking.
This is what Derek said about Ecas, Rogues, and Masqs:
Eca's will be released in the next patch. Rogues and Masqueraiders won't be in the next patch. Also Derek said that details about the next patch should come very very soon in another thread. So next patch will be sometime next week most likely.