I wouldn't mind if there will be Logan's route.
Could be interesting dating someone reserved so he can open up to you and also someone who might be potentially dangerous.
Logan's route was confirmed from the September Report "The first one is Logan McGrath from the Big Pack, and the other one is the 7th main character. They are both introduced on Gil's day 8, also day 1 for the 7th main character. " I think it need you to break up with Coach Gil on Day8(chose→ nothing yet) to trigger Logan's route. Although what do you choosed that won't change anything about Logan's conversation on Day8 for now, but there may be some changes in the future.
It's just a guess that the author designed you have to break up with your partner in the five routes to trigger new characters' routes. Tips: if you don't chose "Lars' dick is the biggest" in day7 ,then he won't join you in the spa later in day8, then you and Torahiko got a chance to show each other's so called"full pride; uncensored, full-view, explicit" which is my favorite. (that's only on Lars' route) . you see? If there is a Torahiko route in the future, you may want to reconsider your relationship with Lars. The same may be on other routes.