Last news on that:
https://www.namepros.com/threads/web-domain-release-date-and-thoughts.948421/page-4
Verisign probed by US Dept of Justice over $135m .web auction
https://www.theregister.co.uk/2017/02/10/doj_investigating_auction_of_dot_web/
I think it's this:
"So why did Verisign pay far beyond its market worth? Competitors say it's because the word "web" represents one of the only names that could serve as a real competitor to the dominant ".com" internet extension."
Maybe it never comes out.