Just read this week's Sinister's Six; my thoughts are as such:
Alex's physical transformation into living crystal seems to mirror his zombification in Dark X-Men, which I think is very curious.
Confirmation that Lady Fantomex is a redheaded plural system desperate for love and family is very nice.
Love that not knowing who's in there re: Venom is a plot point; looking forward to seeing what the reveal is next month.
Also, re: Alex & Chris Specifically —
The more we're given about Chris' backstory, the less I believe he's a real boy.
Like, I fully don't believe in a Lorna Dane, PhD, who would want to reproduce with Alex Summers. She, of all of his exes, feels the least likely to gestate, partly because she's made it 50+ years of stories without getting knocked up, and because she's the ex he wronged the most severely. She knows better, at this point.
The way Alex talks about her to Chris also feels like he's lying — but like he doesn't know he's lying.
The kid is conveniently trapped in a glass box, only attended to by a robot; a.k.a. the ideal enclosure for a little robot or hologram child to be housed and not discovered.
Alex is, largely, a character whose purpose in stories is to be manipulated and tricked by bad actors into working for lost causes and bad institutions, and to have sex with Wrong Women; being fooled by Sinister into believing he has a son with Lorna would being extremely on brand for him.
Domino's narration boxes explicitly establish that Alex's loyalty and buying into the mission is useful in getting other characters to obey Sinister's directives; Sinister only has Alex's loyalty due to Chris being present.
I don't believe this story can get away with fridging Lorna in this the year of our Lord 2025 without a huge dustup.
Lorna fans deserve better than that, firstly, and secondly, it's a flimsy fucking plot device to begin with, because:
Alex is equally easy to manipulate via endangering a woman as he is via endangering "his son."
Anyway, my instincts are saying that everything Alex remembers from Lorna's pregnancy & Chris's birth is a sham that Sinister put in his head because he wanted Alex to toy with.
I also don't think Alex has the X-Virus. I think the living crystal is also something Sinister did to him to sell the story. I think these things because:
Why would Alex transform into red crystal, when his powers are blue-white in color?
Meanwhile, Sinister has worked extensively with red crystal, from the ruby quartz glasses to the red crystal prisons he kept his clones in during the Krakoan Era.
Sinister also has genetically manipulated Alex before; I could see him body horroring him in this instance, too.
Basically, overall, I think whether or not this comic will be good or not will hinge on whether they fridged Lorna or it's more of the classic "Alex Summers gets gaslit so someone can use him as a weapon" type story.