Are 2.0 userlists and search totally different?
Userlists and frontend in general is being completely rebuilt.
Are there any sneak-previous planned in the near future?
CBSubs is using a lot of the new backend API for CB 2.0 (completely XML driven). Aside from that we'll of course be doing beta releases to our professional subscribers in the future. Ideally we'd like to release a basic CB 2.0 before end of year, but I can't guarantee anything.