It would be cool but I'm actually tired of flashbacks.
I get that, but unfortunately its pretty necessary to probably understanding BMs and Kaido's relationship, as well as the Rocks mystery.
There is a reason Rocks went to God Valley, beyond killing Tenryuubito. Its apparent because Roger and Garp stopped him, why? Garp hates the Tenryuubito and this was before even Roger knew what happened 800 years ago. Not only that, the WG erased the island from maps, indicating the island is important.
Which means Rocks' goals had to have been significantly huge (i.e., to do with being King of the World) for two D.'s to work together like this. I.e., this is pretty much what Im is, so im curious if God Valley is central to how Im and the World Government even gained power to control the world 800 years ago.
Kind of why I feel this Rocks plot is going to be part of the endgame and why God Valley will be a place we see even after Laugh Tale and the final war.