It's refreshing to see someone who doesn't think they know it all so I will try to give some quick advice.
First off I would be a little more aloof from the fan base. You need to develop a bit of a Michael Jackson mystique.
I'd start off by giving no release dates, and completely ignoring anyone who mentions them. Instead of monthly upates I'd move to carefully calculated pieces every three to six months, dropping a storyboard or something that doesn't spoil too much, try following some famous animators or movie makers to get a good example.
Then I'd write down a list of every open task and who's assigned to it, and I'd follow up with them twice a week, keeping track of how long they have worked on each task and their estimated time to completion. It's important to keep track of how much their completion time varies in relation to the estimation time. Assume it will be at least 2 to 1 but for some people it will be much higher because they feel pressure. If anyone doesn't work well like this, fire them, they are just not going to be reliable enough to risk wasting time on.
Once you see how the real time costs compare to the time estimates you'll be able to figure out how long you really have, and plan your marketing accordingly. You have kind of petered out and made news sources lose interest because you have been trying to blitz when you should have been trying to just get an occasional heartbeat out there once in a while. When you are maybe 6 months from absolute final completion (everything is done and you are happy, but you have to work out logistic details ansit) then go dark a while then POW complete media blitz with blurbs from prestigious Mitsoda game testers.
Then say something like "it's the final push! When we return we will no longer be mere men but GODS!!!". Then cache in your vacation hours. Go somewhere secluded. Cut yourself off from internet, and code code code. Or write write write or whatever it is you do.
In the meantime I'd get a laptop with all your game tools on it and take it to work. Don't even log in to codex, instead do your work there in the time you would have been eating lunch, while you take a dump, while you would have been posting on the codex about what assholes some of the oldfag trolls are. These spare moments add up to a huge amount of time. Be like a machine and don't worry about effort, even quality, just spend the time on it even if you are staring blankly a lot of the time. You can and will clean everything up many times anyway.
