By Scrapper, I mean the Franklin Richards of the 811-Timeline aka Rachel Summers' fiancee. Now, if you guys don't know, Scrapper got atomized by a Sentinel and he cried out with his powers to seek a place in time when he was happy and safe - this being when his parents were still alive. His mind goes back in time and latches on to the baby Franklin already there, becoming one of his dream selves. The only problem is that he's more than just a dream self and so, to avoid fading, he calls on the incredible power of Rachel to sustain himself. What goes on is one of the most tragic but beautiful stories of the Claremont Era: Days of Future Present.
To sum it up, Scrapper finds the past to have changed due to Rachel and Kate Pryde's interference in the Days of Future Past story but because things ultimately converge into a Sentinel future nonetheless, Ahab's been sent back in time to make sure nothing else changes. Scrapper unlocks his true potential - and creates his own X-Men costume with a four on it to pay homage to the FF - and defeats Ahab, who retreats into the future. Problem is, for Scrapper - who's just pure thought - to stay alive,he needs Rachel's energy and will persist as a dream self. That taxes young Franklin and Rachel, threatening to kill them both.
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Scrapper professes his eternal love for Rachel and allows himself to die so that she can live.
The X-Men and Fantastic Four call each other family, bid farewell and vow to stop the dark future if it ever comes to be.
This Franklin is one who grew up embracing his mutant side: he hated that Reed was afraid of his powers, went to the Xavier's School but was worried his dad would pull him out, was part of an incarnation of the new Mutants under Forge and Banshee and was persecuted and thrown in camps. In truth, he'd probably be much more willing to join them, especially if it means being with Rachel.
The only problem with this is we don't know when Professor X had Forge upgrade Cerebro. It's certainly before the Hunt for Xavier plotline, because in that, Cerebro's gone hawyire and is performing the functions she does now, just with a lot more aggressive tactics. It could be after Days of Future Present, happening right after the Muir Island Saga when Professor X has returned to the X-Men with Forge a part of them - but then why would that flashback take place in Eagle Plaza which was, at the time, abandoned and destroyed due to Naze/Adversary? That implies that if it is after, then it isn't right after but a fair deal after.
If it is before, then Cerebro would have record of Scrapper since he really was just a mind that could be duplicated. So, if that's the case, why not get the adult Franklin who already thinks he's a part of the X-Men instead of one who's unsure of where he even belongs in the world?
Or Hell, why not bring back Psi-Lord if Cerebro recorded him for the few seconds he was on the Earth?