Sheesh, how many marriages has he had?
Smasher, Imperial Guard are more closely associated with X-Men than Avengers. She should remain his wife.
And this is the comic world where character's can have their entire history rewritten at the drop of a hat so it's not impossible to think that Smasher and the kid would go away one way or another...
Either Smasher will end up dying off screen or will leave Sam to stay permanently in the Sh'air Galaxy with their kid. The X-office is famous for not honoring marriages, especially if one of the characters are not handled by their editors. Case in point: Storm and Black Panther. Before you know it, Northstar marriage will also fizzle out before long.
Boomball (yikes) fans need to give it a rest and let Smashball (ugh) stick.
I like Hickman's run but the Sam/Smasher romance really came out of nowhere so their presences in the line-up wouldn't be completely pointless. Illuminating Comics' parody of the run explained it best:
Sam working with the Avengers and getting married is a nice "life after the Xmen" and I hope it stays. Not many of the Xmen get to "graduate" into real life.