As a disclaimer winter conditions can and will change quickly...
Brian and I went out last night, did the Mound/Holy Schist loop. Conditions were good, most of the ice was covered in a dusting of snow that made for some great traction. Some sections were rough from foot traffic but, overall it was moderately fast.
Looking at the possible future weather, the trail should be rideable tonight and tomorrow morning. If you can get out it might be the last time for a few day's