It appears that Baseson are planning something for Koihime's 10th anniversary. I wonder if we might see them re-release the older games with the CG's upgraded from 800x600 to the 1280x720 that Koihime Eiyuutan had.
I am already dreading all the rare limited art this anniversary is going to generate. With so many great artists working on the games Koihime has had just so much great art over the years and most of it really really hard to find.