Here's what I can find as far as players we might lose after next year, including seniors (who might get injured and play another year) and the two Juniors who might have a shot at entering the draft early (Cody Hoffman and Kyle Van Noy) though I'm not sure how likely it is that either of them makes that decision even if they are good enough.
QB: Riley Nelson, James Lark
RB: David Foote
FB: Zed Mendenhall
WR: Rhen Brown, Dallin Tollestrup, POSSIBLE: Cody Hoffman to early grad
TE: None
OL: Braden Brown, Ryan Freeman, Braden Hansen, Walter Kahaialiâi, Austin Nielsen
DL: Romney Fuga, Eathyn Manumaleuna, Jordan Richardson, Russell Tialavea, Ian Dulan
LB: Ezekiel Ansah, Connell Hess, Austen Jorgensen, Uona Kaveinga, Brandon Ogletree POSSIBLE: Kyle Van Noy
DB: Joe Sampson, Preston Hadley, DeQuan Everett
S: Mike Hague, Robbie Buckner, Carter Mees
Special Teams: Riley Stephenson P, Reed Hornung DS
So of the 31 players we might lose next year (29 probable seniors, 2 unlikely but possible juniors) 10-12 of them are likely to be starters next year (right around half of our starting line up), 7 have played enough minutes that we will probably miss them at least some, and 12 of them have not made a significant contribution on the field, but might make one this year. Here's how I have them broken up.
Starters: Riley Nelson, Cody Hoffman Possible, Braden Brown, Braden Hansen, Romney Fuga, Eathyn Manumaleuna, Uona Kaveinga, Brandon Ogletree, Kyle Van Noy Possible, Joe Sampson, Preston Hadley, Riley Stephenson (10-12)
Significant Minutes (not starters): Zed Mendenhall, Walter Kahaialiâi, Jordan Richardson, Russell Tialavea, Austen Jorgensen, DeQuan Everett, Reed Hornung (7)
We definitely seem to get hit on the defensive side of the ball worse where we potentially could lose 2/3 of our starting D-Line, 3/4 of our starting linebackers (if Jorgensen starts at MLB along side Kaveinga this year it could be all 4), and both of our DBs.
On offense, we lose 2 starting offensive linemen, our starting and backup QB (as has been discussed continually on here) and possibly our best wide receiver.
Fortunately for 2013 most of our big games are at home. Houston and Notre Dame look to be the toughest road games this year, with a possibility of Washington State with Mike Leach in his second year as head coach.