Just read chapter 1 again, didn't think that the art style has changed so much. Takagi had a more mature look back then and I love it as much as the current one. Wish the author will release high school ver with that style.
I do not believe we've seen Houjou in the Moto spin-off, but considering how everyone else has ended up with their middle school crush, I think it's safe to assume they will end up together.
I love the secondary couples getting focus. Nothing against the main formula but getting a break every now and then is really nice. Wish Sumire-chan gets a chapter too eventually .