Welcome back and sorry to hear about the bum knee! I've been to enough big events to understand what you went through and how you might be feeling right now. The urge to crawl into a deep, dark hole all alone for awhile does battle with the mound of work waiting for you. Somehow the mound of work always wins.
I'm part of the throng that wants to know what's in the works, but I hope you remember to rest first.