In all likelihood, Zoro will be fighting S-Hawk.
I don’t think there’s enough of a build up for a gorosei to fall in egghead or for Zoro to beat an admiral this arc.
Saturn will command the Seraphim to attack the SHs, Kizaru will go after Luffy. Saturn will probably do nothing for most of the arc.
If the seraphim turn, Zoro is honestly the only one capable of fighting S-Hawk. Given that we’ve yet to see his DF, it’s very likely S-Hawk is low top tier.