I can't release details just yet, but it's quite likely that we'll let the word out tomorrow or the next day.
It's a particularly major development.
Will this announcement show a feature delivered in XC or will it be another PR announcement which showcases something in the future?
Hmm... that question is tangential to the announcement. I could say yes to both sides of the disjunction, though at the expense of not doing justice to the sense in which you intend your question to be understood.