Glad to hear you've enjoyed it! Rest assured, Honoka's writing staff is working on a new content for her route, so there will definitely be more BE scenes. It's always tricky to say how much content players can expect with the future updates as GA is ultimately a volounteer project we're doing in our free time. The amount of time we can spend on the game is always dependable from irl and various other circumstances. But we have a very passionate team and are very committed to completing this game
If I could also recommend something, if you want more Honoka content, I always encourage players to check MC scenes which are optional side quests outside of the main routes. Stories from these scenes are highly reactive to which route you're playing, often reference it and are aware which girl Kei is dating, but also feature appearances of the main girls. Honoka appears in a few of them and some of her segments are quite substantial (like for example in MC008 or MC013)