Genshiken chapter 80 and more
Well, there's that.
Once "closed" this part, let's examine Genshiken second generation in a more holistic view. It's focusing in two things, and in a way this two things are a bit negative points that mades the second part weaker than the first.
-Hato-Kun. Hato Hato Hato. He is kind the real main character of this second part. In one hand, I can understand the focus on him because he's the new character with more "depth", but to be honest, I'm starting to be tired of him. The series has already expressed what's his deal, at this point is being repetitive. It could be told in a more compact way, several volumes around the same concepts is excessive when the reader could suspect where it was going all this since almost the start. The shipping fantasies and pairings applied to real life in a way that is affecting him are a bit creepy (intended, I suppose), and not in a "hah hah what an otaku!" way, there is a pair of times in what he appeared almost yandere; apart from that him and the other two fujoshi going on about semes and ukes for several volumes gets old. In fact, there isn't a lot of characterization in the other girls, despite they are appearing in a regular way. There is only a bit of characterization in the fatty one, and the other is totally flat, it's there to make jokes and provoke the other characters. Maybe the limelight should have rotated more between the new characters.
-Madarame and his romantic life. So, at this point it seems Genshiken has turned into a romance manga? I'm not sure that was a good idea. The original also had a bit of it, and it was good, but that's it, a bit of it. Even the longest part with Ogie and her problems were only one volume. It reached a good balance between other themes and styles. Now, the series seems more "typical", with a guy and x girls (and a trap), and people wondering who will end with, and harems, and possible misunderstandings, etc. It's not even very well narrated why or when the started to like him, in some cases it appears a bit our of thin air, with it's weak plot-wise.