Right now I think its just the last few updates in bk4 love route. But we dont know how big of an epilogue they will be doing or if there might be a bk5.
Every route is the same size and quality of a regular h-game. Edit I guess thats not accurate but the ones I see around here seem to be usually 1-5 hours and maybe a dozen scenes, Japanese H games can be in the 5-20 hours range too. Besides bk1 that have the routes play nearly the same. I think its more than 20 hours playtime if you dont rush anything right now. Thats not counting optionals like the crab or card minigames. And the number of scenes has to be counted in the hundreds but I didnt check. I treat each book like its its own game and bk4s routes too.
they mentioned some time back that if, it's not going to be a full book 5, more like some epilogue thing, and iirc there's no slave/love planned for that.. don't pin me on the latter, it's merely what i've had some wind gust tell me
also, i'm one of those who actually have loaded the game for a few rounds of crab battle on occasion. just that. am i weird? anyhoo i'd even say the whole of what-we-have-now, as is.. fairly exceeds 30 hours, if you play all routes and dig through everything clickable. i'm a bit of a completionist, so i did that.
sadly, really, still no official gallery mode; i'd find it way more convenient to have a gallery instead of (by now) 157 saves just to replay scenes. yes there's the gallery mod, which is working good, but by nature of a mod it trails the game, can't be 0day.
