You'll be able to see pages of Rose for Shurinai before they're even released. You will also see polls, where you can decide between a few designs to help determine how the characters in Room 301 will appear! Patrons will also get a chance to get their original character/ likeness featured as an NPC! $20+ patrons will be contacted about getting their characters/likenesses featured (which means you don't have to worry about the 'chances of winning')!
.......I THINK THAT'S IT! :D