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Yeah, it seems like he's still got his Children Of The Vault enhancements, which is odd...

I don't think they'd kill him, not this soon after the wedding as there'd be a massive outcry from the LGBT community.

I see his speed lines in the very last panel, so we know he's next ;)

Some non-Northstar featuring preview pages for Ast X #60:
http://www.comicbookresources.com/?page=preview&id=15785