Suspension or expelled?..or probation?

HI, I was drunk and wrote a stupid letter "Hi thanks for teaching a shitty ******* cl u foreign mutha fukka..learn to describe what you are doing.. dont just ume we all know..peace out".. to a teacher.. i dont remember it and i am so ashamed and feel so bad about it.. the school has these charges against me: harmful and potentially harmful behaviors, acts which intimidate, and violating regulations for the student code.. and i have a University Judicial Board meeting.. i have no prior disciplinary records but i do however have only a 1.85 GPA and already on my last straw academically with probation..i go to Western Illinois..what can i expect? i really hope not to be suspended or expelled but it seems likely..i hope your guys info/opinions are right