So glad to see someone kicked off this thread (I did the 2019 and 2020 Adam-X threads).
I am excited that Fabian is getting the chance to tell the story as he intended. He was the one who laid down the "Summers brotherS" concept as plural. But left the books before he finished laying down all the ground work.
I think the story will focus on Adam's backstory - who he is (obviously), how he's tied to the Summers (obviously), but I don't think it has any intention of saying where he is or what he's doing these days. He's made a few appearances here and there - and I honestly don't think Fabian knows or cares to know how they've treated Adam after Fabian stopped writing him.
So I think Fabian's just going to tell the story of Adam, his origin, and leave it at that.
I've talked to Fabian several times - (and it might even be on an interview somewhere where he's mentioned this) - but he'd intended on doing a LS on Adam way back when. This X-Men Legends with the first issue being double sized, he said lets him pretty much get to tell it as close as he could have ever hoped. I am, for one, naturally, quite excited. Fabian is probably the only person, longer than me, who has been waiting for this day.
For anyone interested - I also run
https://twitter.com/adamxneramani and have been dishing out sneak peeks of the upcoming book for several weeks now.