First off...get back to brewing! I didn't brew much at all this past year, mostly because of some unpleasant life changes I was dealing with, and the beers I did produce were sub-par because they got neglected and sat around for way too long before bottling. My most recent two beers, the hefe and the oktoberfest, are MUCH better, so I feel that I am getting back on my game.
Aside from...actually brewing, this year I want to do a few things in terms of recipes (I write my own recipes for probably 90% of my beers)
1) go back and re-visit some of my earlier recipes that made beers that stand out in my mind. I've been brewing since late 2006, and up until now most of my beers have been one-offs. Since then, my technique has also greatly improved. I want to dial in on some of my favorites and take them from "good" to "great." These will be some of my signature, house beers.
2) continue to create new beers for styles I have not tried brewing yet.
3) once it warms up a bit, brew some belgians! I love belgian beer, yet I have only brewed one belgian, ever! It was also one of my best, and the one that got consumed the fastest.
4) try re-creating some historical, extinct beer styles. I love some of the descriptions of beers like this in the book "Radical Brewing," and I think creating some of these dead beers would be fun. Probably in smaller batches though, since some of the old brews are weird compared to modern beer.
5) build a kegerator and start kegging my more session-style beers. I have a spot for the kegerator already picked out, and this goes along with another goal of mine for 2012: convert my basement into a proper man cave
6) do more all-grain. I have done a few all-grain beers using the "brew in a bag" method. They were also some of my best beers. I have already gotten away from extract beers, all of my beers now are partial mash, and they are much better for it.
7) participate in the homebrew community more. That means posting here again, sharing and critiquing recipes, maybe looking into a homebrew club or doing homebrew swaps, etc.
8) grow hops!