That is a possibility too, but I think this might be only possible if you alienate Hana from quite early in the game. That is too much a dick move if you are on good terms with her.I can also envision a path where the Mc betrays Hana In order to get an ownership stake. I get the feeling that Kathleen is training him to be her eventual successor. If you go down that path.
On the less darkish endings I think we will find some where Killian and Mina are restarting their relationship, but only after much pushing from our MC. Killian acknowledges that Mina is special for him, but currently he is too much influenced by Chuck. You can see it in their talks.
By the way, I am quite curious how the story with Mina goes on, no matter if the MC and her become lovers or not. Mina is the only main female character, who is currently only tangentially connected with the Club.Which might become both a blessing and a curse later in the game.
And I am even more curious how Hana´s story continues. There is huge potential, with her never or only partially or fully corrupted from her work in the Club. How her relationships with the MC and August develops.