Well, technically you gave yourself until May, last I'd heard, so I don't see how you're breaking any promises, Trooperman. It would be very easy to try to push this now and pressure yourself into inferior work. I've done it myself. Don't strain yourself. Everything will be fine. Just do what you have to.
And, what I heard in the trailer sounded perfect, Nanner! I'd even go so far as to say I don't know if I'd like it as much deeper--but I couldn't say for sure. Oh, well.