Worstgen
Sentinel
I'd be very dissatisfied if Roger/Primebeard won't show continental level feats. That's something I expect from the strongest OP characters.
Tyki_Mikk
Continent lvl for Roger and Whitebeard? Why not? Whitebeard already can sink a entire island just by screaming his voice up, shake a whole island+sky+ocean with just a haki clash without using Gura power, I don´t even wanna start about thinking he using Haki+Awakenend Gura, probably a attack who could destroy entire country-continent. Roger and Primebeard are the goats....
Tyki_Mikk
A single haki clash of them even shocked a monster like Oden who was a top tier during that time, with speak a lot and show why both beeing the strongest overall.
Sentinel
I mean, there's already huge potential of Shanks + Mihawk being continent level due to their duels shocking the Grandline if it's literal. But knowing Oda, it sure was only metaphorical.