Okay, I sent an email and got one back from Bethany, the graphic design director. She said she's let me know by the end of the week (and definitely before Tuesday evening, which is when I leave for a 72 hour bus ride from Bogota to Lima). I'm sure it's different for all departments, but if you're really interested in RISD, send them a nice email letting them know that you are interested and waiting! Keep yourself fresh in their brains...