Two blogs I regularly visit have their 2008 Winter Preview guides up.

http://randomc.animeblogger.net/2007/12/30/winter-2008-preview/

http://novastorm.animeblogger.net/winter-2008-preview/

Judging from the previews not a whole lot of new shows to look forward to in the Winter lineup. I am looking forward to Gunslinger Girls mainly because I watched the first season and want to see what happens, Aria because I liked the first two seasons, H20 looks interesting and Rosario looks funny. Thats about it so far.