Dark Theory About Peter B. Parker after the events of Spider- Verse

This contains SPOILERS!

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Alright so when Peter gets back to his own dimension he’s basically made up his mind to get back with MJ and have kids of his own, right? What if in the sequel, MJ dies as a result of Peters radioactive DNA mixing with hers? (Like in that one comic). This Peter’s pretty much been through everything, and having this happen to him after all he went through would really add more emotional weight to the character. Spider-Verse was very emotional as it is, could you imagine the impact this would have in a sequel?