Now it make sense why Oda cut of Marco from rest of the troup, he didn't want give him already at the begin a Lose,also woth Marco it would be harder for the troup to take out the Scabbard. All this is set up for the Scabbard to lose in the next chapters so Luffy can jump in. Marco probably arrive also later, afrer he probably fight off Perospero??
My prediction:
987 Scabbard vs Calamity and Kaido starts/Luffy and Yamato face Whos's Who and Ulti/Pageone
988 Scabbard get defeated(shine for Calamity and Kaido)/ Luffy vs Ulti/Pageone and Who's Who vs Yamato
Even though the Scabbard take their first W, it is clear that they hold up for Oda to use as Hypertool for the Calamity and Kaido, because that he separate Marco from them off so Marco didn't taking the same threatment at the begin.