It was pointed out, on the Comic Book Resources forum, that they are expected to appear in June's Amazing X-Men #8. That wasn't immediately obvious in the solicitation, though the reference to Canada should have caught my eye, really. Here's the teaser:
AMAZING X-MEN #8
CRAIG KYLE AND CHRIS YOST (W)
ED MCGUINNESS (A/C)
• Wolverine takes a trip back to Canada…
• But when he discovers that an old friend is missing, his visit soon transforms into a hairy situation.
• New writers Craig Kyle and Chris Yost!
32 PGS./Rated T+ …$3.99
The mention of the discovery of an old friend being missing is interesting. I wonder if they're going to end up looking for Guardian's ex, Heather (Vindicator) McNeil Hudson. It would be about time...