I kind of doubt it. The point of those two stories was that there was one character (one in each) who needed to realize they were in love. To be precise, Satou and Kana. At the end of the stories, Satou realizes she's in love with Miki and Kana realizes (really bittersweet, this one) that she had always loved Yoriko but, by realizing it too late, has screwed up any real chances she could have had with her. But, hey, there's always Mao... perhaps now Kana will be able to have a real romance with her?
Imho the author considers the main point of both tales solved, and it's unlikely that she will return to them.. (except if fans demand it really loudly, in which case, maybe?)