What a fantastic game. I have to say, I feel kind of sorry for Ethan. He's obviously a misjudged character who was misguided and corrupted with power. I really hope he gets a redemption arc because he deserves to learn from his mistakes and get an honest to goodness date with Erynn. It would be great to have him as a reminder that life goes on around MC if you didn't pick Erynn as a love interest.
One of the main reasons I think this would be a good idea is that he has a stable job. The only thing MC does is go around and cause chaos for all of the girls around him. This isn't healthy. I understand that Ethan has done some bad things in the past (and also in current content) but I think he can really turn it around if he chooses to use his job for good and uplift the girls around him. Honestly, I think he should offer jobs to all of the girls in the game, because they are all beautiful and they would all do well at his agency.
The other reason I think he should offer jobs to the other girls, is that it would give Zack an opportunity to rebuild the obvious romantic connection that he had with Valeria, this would be good for the game, because the MC doesn't need all of these girls crawling all over him, it is not realistic.