Nanami could very well make an appearance soon. I need Gojo to crash out over the realization that he didn't have Utahime first. Lmao Also, he's so used to being the only one (save for Geto) to show interest in her outright, so I genuinely think he would be taken aback to realize that Nanami and Utahime had a little something, even if it wasn't set in stone.