And then there's Magical Girl Lyrical Nanoha, whose fourth season is in the works-- as a manga, not an anime. It'll appear in a new magazine, Nyantype, in its first issue in April.
And if neither of those is enough for you, there's finally an announcement of an anime based on an original manga that hasn't already been done: Takako Shimura's yuri-themed manga Aoi Hana (blue flower), about two female childhood friends who meet again in high school, is in the works. Huzzah!
What sounds good to you guys?
Also, for something so heavilly based on music, the soundtrack sucks.