Wow, this came out of left field... definitely feels like it either got axed, or the author got bored. I guess it's possible they're just going to lead into a part 2 or something, but it really doesn't feel like it.
Honestly, the series sunk down pretty low for me compared to its early days. A whole lotta nothing happened all these years, and that's even when compared to other major SOL series. For me the highlights of the series will ALWAYS be Mashiro and Benio's antics. Mashiro's song from the anime ("Mashiro World", I believe) is the best thing to come out of this series bar-none. Absolutely adore that thing and listen to it all the time.
All that said, I still love the series. I hope we get a part 2 where they're married or something. Kind of like that Takagi spinoff.