I would like to be involved in the Tcl API aspect of all this, since there are still pieces in the original CMS that we should grab, better integration with ad_form which is possible (the building of content type forms automatically), etc.
After having taken a bit of a break the last half of summer and part of fall, I expect to be working virtually full-time on OpenACS/.LRN throughout this winter at least through early spring (I may take three-four weeks off in April or May).