I think its easy to see it with Blackbeard specifically because he had an ability wb never had
his second df
dont think anyone expects him to use the other better than wb ever could.
Yeah its definitely easier to see with bb but i do think shanks had potential to be the roger of the middle gen
He already basically is tbh
Also if the theory of him being xebec's son is true i do think it would be cool if he and teach mirrored eachother again
Like i think it's a fun idea if blackbeard got the yami fruit knowing it belonged to xebec
Meaning he took whitebeards fruit along with xebec's
Shanks inheriting and learning Roger's fighting style is cool so maybe instead of taking his fruit maybe he inherited or learned something that xebec had
It's obviously just a fanfiction or theory whatever you want to call it but i think itd be cool