Sel has already put wizard content in with the Sekai and little Akira scenes, and as the story continues, we will probably get more flashbacks to those moments, so I doubt he'd have any qualms about putting in more wizard content with other characters, and I vaguely remember him saying in discord (a very long time ago, so take this with a big grain of salt) that wizard content for Chinami (and I assume Tsukasa and Nao) will happen, but it will be something you have to go out of your way for. (So R.I.P. to the 100% event players who don't like wizard content. lol)
What I'm wondering is how it will affect the game going forward if you decide to do the deed with a wizard. I don't see it as something that will drastically change the direction of the story (the game will definitely use it to mock the player and Akira for doing it, though). Will it be like the pony stuff, where it's brought up occasionally as a joke, or will it be a thing that haunts the interactions you have with characters like Chika and Touka? How will characters react when they find out, and depending on what's going on in the story at the moment, will they care? I thought all hell would break loose when the girls you're sleeping with found out that it's not exclusive. but they've taken it surprisingly well, ignoring the extreme melancholy and the one suicide attempt. So will it be something similar where the characters just shrug and accept it, or will it possibly lock you out of other content? How do you all think it's going to go down?