The thing is, Jack, who was an Ancient Zoan, still needed a fair bit of time to get back to action, and he was as close fucked up as Zoro currently is. It should be logical that Zoro takes longer to recover enough to be in fighting condition, even with Marco's healing ability. Unless, of course, Oda buffs it out of nowhere and instantly heals Zoro in exchange for draining Marco.
But the thing is, during that time, we should have enough fighters to deal with both King and Queen already.
IF Zoro still gets a fight this raid, I think it's more likely he comes back for another round against Kaido, or maybe even Jack.
I find the possibility of going against Kaido again more likely than fighting Jack, to be honest.