This is a one-shot celebrating the 60th anniversary of the original X-Men. So is it really surprising that it's a story that features the O5 X-Men?
I mean, it's not the New Mutants' or Generation X's or Academy X's 60th anniversary, now is it?
Did you guys really expect big launches to be announced in an AIPT interview? Wait for NYCC 2023 for news on the post-FoX (re-)launches.
Earlier this year, they published Avengers: War Across Time featuring the time-travelling O5 Avengers for the Avengers 60th anniversary.
https://marvel.fandom.com/wiki/Aveng...oss_Time_Vol_1
Last year, they did Fantastic Four 35 for the 60th anniversary of FF, with them travelling through numerous time periods, including the original Lee/Kirby days.
https://marvel.fandom.com/wiki/Fantastic_Four_Vol_6_35
The time travel angle seems to be consistent motif across their anniversary titles, so I'm not surprised to see it here.