Physic Power Nanaki
Hana No Akuma
Until the Full Moon
Black Cat Cafe
Alice in the Country of Hearts
Beast of the Tower
TWGOK- most definitely. About the third season- I don't think that it's been confirmed, and I haven't seen it on the anime line ups for the upcoming seasons. I heard that when they released the OVA it was sort of a test to see whether or not it would be worth it profitwise to continue animating the series. The sales apparently went well, and they just released another Kanon album near Valentine's so I assume that that's good news.
Pandora Hearts- By the manga damn it. The anime ending was so freakin rushed.
Soul Eater & SE Not!- Agreed. There was a rumor flying about the internet concerning a new season of SE that would follow the manga, but I don't know if there's any truth behind it or if it's just a bunch of fans spewing nonsense.
Watashi ni xx Shinasai
I wish JoJo's Bizarre Adventure had a tv series that would cover all the parts (some of part 1 was made into a movie and some of part 3 was made into 2 OVA series but they skipped stuff). That would be pretty long though haha.
I'd have liked to see a 20th Century Boys anime also.
For existing anime, my dream would be for the last arcs in Rurouni Kenshin (similar to the manga) and Slam Dunk to be animated.
Second season to Majikoi that follows the game's plot.
Remake of F/sn, Oretsubasa and Akasaka anime.
Second season to Bartender
Third season of The Melancholy of Haruhi Suzumiya, I want the Snow Mountain Syndrome arc done so badly for fanservice's sake and hope to see ALL of their illusions.
i would love to see "air gear" remade that follows the manga series. the animated is ok but the manga is soooo much longer and better. i would also like to c more azu-manga-daioh. soul eater would b nice if it followed the manga. i think rosario+vampire could also use another season. possibly shuffle! too.