I think Kidd beating Shanks is the most impossible. Oda has been blueballing Shanks, he will get the spotlite now.
Rather than Shanks...nowadays, i'm worried about how Oda will treat BB in the future tho. Will BB still be the endgame villain in Laugh Tale just like i hope it to be, since pre-TS? Oda gave him bad treatment due to Rayleigh and Hancock's involvement, BB looked bad back then. So now, will Law dish major damage to BB in battle? Even if BB won, thats not a good look for him.
Rather than Shanks...nowadays, i'm worried about how Oda will treat BB in the future tho. Will BB still be the endgame villain in Laugh Tale just like i hope it to be, since pre-TS? Oda gave him bad treatment due to Rayleigh and Hancock's involvement, BB looked bad back then. So now, will Law dish major damage to BB in battle? Even if BB won, thats not a good look for him.