I wouldn't assume that last year they indicated that sneak peaks would be only for the new membership program members forward. We might have to wait and see closer to the even on the grandfathered in memberships.
Shame they werent open on Halloween night since its a thursday and they are open every thursday the rest of the month for HOS. I remember a number of years ago doing the trick or treat thing here at home then heading to BGW to close out the season with the last night of HOS. Yes that was before CT.