Men I really fear that chapter 1000 going be a flashback with fucking Yamato and Ace... Pls I beg you Oda don't do it...
But rather was Ace already a Whitebeard member during that time in Wano? In that case if he was one, *headcanon starts* he was most like caught off by Kaido after his defeat. With means Whitebeard look for Ace>Whitebeard face Kaido>Kaido get his last L and Ace could come free> result:
Whitebeard vs Kaido chapter 1000:cheers: