Hey there, I'm happy you enjoyed it so much! No better medicine than some nice smut with plot :3
Yes, the paths will continue from the best outcome, and most importantly all of them will contain spoilers from all the routes in chapter one, so good thing you're up to date :]
Tate's story was easy to write for some reason, but he still has a lot of development to go through in the next chapter. Aiden will absolutely get a rework, there are many things I don't like about it and yes, it is too short. Dallan will also get a bit more content but nothing major. Ultimately Tate's route will remain the longest one of the bunch, even counting the last route, but not by a landslide.
I love designing side characters so I can feed the reader all the spicy content without actually rushing in with the love interests. Oliver is definitely one of the best bois out there. :) A surprising amount of people are either kind of indifferent towards him or absolutely adore him, but nobody can hate that adorable anxiety ball.