January is a big month for Gurren Lagann. The mecha series, which recently celebrated its fifth anniversary is getting a new airing on Japanese TV, with a big announcement promised. Speculation is that this is going to be a new Blu-ray set, and early listings suggest that it's slated for June.
Gainax is getting into the action with a month of special top illustrations on gainax.co.jp.
The first of these illustrations is by director Hiroyuki Imaishi (also Dead Leaves and Panty and Stocking)
Some of his earlier site welcome illustrations
A couple of surveys of Imaishi's animation work