We are aligning Banshee's release schedule with GNOME's, at least for the next few months. Banshee 1.6 will be released the same day as GNOME 2.30, and we'll have three beta releases before then.
1.5.3 - Jan 27 - Wednesday!
1.5.4 - Feb 24
1.5.5 - Mar 10 - String Freeze
1.6.0 - Mar 31
I'm excited to try switching our schedule from feature and whim driven to time-based; I think it will be felt positively by everybody: contributors will know when their work will reach people, translators will have time to translate, and users can stop wondering what mixture of magic and bribes will cause a release to finally happen.