One thing I'd like to see, and it may just be because it's a demo and not everything's finished, is some more notifications of what's going on. Sometimes my characters will suddenly just be poisoned or some attack sequence or status conditions will just appear on characters. Part of it is probably where there's a lot of stuff available and by playing through the full game I will understand it, but for now at least it can get fairly confusing when a large clock starts spinning around the screen.
Also, it appears that right after I choose an attack, the person's clothes glitch for just half a second. I can't catch what they glitch into, but it does do something odd.
 "Epic Battle Fantasy 4"){kind=icon}
 "Level Up!"){kind=icon}