The staff did not officially state that the focus is on one expansion. Just stop. Don't believe everything everyone says. I'm locking this thread. This is getting a bit out of hand.
He is correct, he must've followed the last Sunday's live stream and you haven't :) since then development focus has been on Wrath of the Lich King and will remain so for some time, specifically in preparation for upcoming Lordaeron. Focus on an expansion means majority of the team working primarily on one expansion more than the others, it doesn't mean other expansions are abandoned, but it does show prioritization at a given time.

@Sapphire, yes please feel free to lock it. Our population started growing again based on account registrations, website visits and average daily player statistics analysis and our development rolls at a pace no other private server can currently match. Apparently we're making too much progress and too many improvements in a short time for some people to be able to give an adequate reaction to. Last night I took several hours yesterday browsing "competition" with ghosttowns on default Trinitycore, no self-made updates but a meaningless posts once a month and people sucking up to them in response. Unfortunately the few good and hard-working private servers that deserve attention and earned respect over years are nowhere to be seen or mentioned, unlike these new fad SEO and vote-botted ones that feasted on Molten's disaster like vultures.

Back to work for us.