Marel has a "special" announcement planned for later today on Twitter, but its teasing something else early. Take a look:
So "Uncanny" plus the number "1" plus what looks like a Danger Room, and that kind of math seems to add up to a new Uncanny X-Men #1.
The last Uncanny X-Men volume ended in March 2017, but historically the brand name has been the X-Men's primary title going back to its debut in 1963 (although only later adding the "Uncanny" adjective).
It's also notable that Marvel recently tapped Jordan D. White as new X-Men group editor.
Hedging our bets however, Marvel has used "Uncanny" for non-X-Men projects including several volumes of Uncanny Avengers.
Look for more here on Newsarama has it develops.