In January 2021 Wikipedia will celebrate its 20th birthday; this roughly coincides with 25 years of wiki, 10 years of FedWiki, 10 years of Wikidata, and 10 years of Wiki Strategies.
Pete Forsyth and David Bovill have discussed putting together an event to celebrate the occasion and focus some attention on the opportunities and challenges with Wikipedia.
Wikipedians around the world celebrated Wikipedia's 15th birthday with a lot of coordinated events. Pete was one of the planners of the San Francisco event, and moderated a panel discussion. Overview 
and San Francisco
Wikipedia @20 is a recent book of essays to commemorate the occasion. Pete wrote a chapter, called "Trusting Everybody to Work Together," which expands on the ideas presented here as Forsyth Criteria.
On the call, Decembe 29: Inger-Mette Stenseth, Pete Forsyth, Sherry Antoine, Lane Rasberry, David Bovill.
Topics discussed: Green Deal Wiki, WikiCari, AfroCROWD, News On Wiki, World Climate School, COP26