Will it be possible in a future update to change the font used in the game. My eyes get sore after about 5 minutes of reading. Perhaps a free font like liberation sans or dejavu sans?
If it's really bothering you, you can change it yourself.
RenPy allows you to switch from the default font of any VN made using it unless the Dev deliberately cuts that functionality out, and I don't really know if that can be done without messing with the integrity of the game engine.
After you open the VN and get to the main screen, hit "Shift-A" and you will get this screen:
You can change the font at the upper left, and you can also change other things about how the font displays if you still have trouble.
I took this screenshot specifically from v0.7b, which is the last update I played and which is on my external. This is something that should not have changed in the update.