If you want to send them on a short trip to Barovia, both DDAL04-09 ("The Tempter") and DDAL04-10 ("The Artifact") are good standalones.For the existing party I'll likely just break out a stand-alone module of the right level from DMS Guild when we play them and forget about a continuing story line for once.
You might also find some useful ideas on this thread:

DDAL - AL Adventures That Form Mid-size Story Arcs
This an offshoot of a conversation I was having with @Hurin88 on another thread. Hurin (and several others) were wishing for the days of published adventures that were meant to cover three or four levels--something in between a one-shot and a full campaign. I mentioned that several of the AL...
