Hmmm...
I think there can be a jail break
But it will not have an entire arc!
Rather it simply can be revisited through a chapter or two at best.
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I heard a nice theory once that Impel down will be infiltrated by Franky in the next time
But here is the scenario:
1- this event will be during the time where the SHs are preparing for the final war against the WG.
2- Each SH will go do their own thing before the big war. Maybe Zoro pay a visit to Mihawk and win the title. Maybe Sanji visits his family for his own reasons or maybe even Zeff...etc!
3-Franky hears of news about Tom actually still being kept alive (from an escaped prisoner during the time Luffy broke many people out). Tom is still being kept there because he's someone who knows fully the blueprints of Pluton in his mind. So, the WG decided to fake his death and imprison him and keep torturing him to build them the Pluton.
4- Franky decides to go on a journey to save Tom-san
5- When Franky infiltrates Impel Down, he will be able to meet "Senor Pink" just like Luffy with Bon-chan. Luffy basically had many prominant members of Barook works be ally during the jail break. This time with Franky, it will be The Donquixote family.
6- I hope Mr. 2 actually manages to survive this time and join them.. and instead, it might be Senor Pink this time who will stay behind to make sure they escape.
7- Mr. 2 Finally meets the SHs when he's free. He deserves it!
And Doffy will play bug part in final war because of his ties to CD.
Franky would have had his moment and dramatic reunion with Senor Pink.
Also, Luffy got out last time with TWO shichibukai.
So maybe Hancock getting captured because of her being former slave, and shichibukai system abolished. That can make Franky's escape with "Doffy and Hancock" this time