Also see: New Mutants: MMXI teaser, X-Men Legacy: MMXI teaser, and Uncanny X-Force: MMXI teaser.

From the press release:

The Uncanny X-Men face their fears this July, as MMXI – the year of the X-Men – kicks into high gear!

UNCANNY X-MEN #540
Written by KIERON GILLEN
Penciled by GREG LAND
Rated T+ …$3.99
ON SALE THIS JULY!

Related posts:

1. A Marvel Teaser for Uncanny X-Force: MMXI
2. A Marvel Teaser for X-Men Legacy: MMXI
3. Marvel Teaser - New Mutants: MMXI
4. Preview: Your First Look at Uncanny X-Men #531
5. Kieron Gillen Joins Matt Fraction as Co-Writer of Uncanny X-Men