Ever the optimist, I'm going to say that Justin Morneau will play in 145 games in 2012.
I think he will be the DH 110 games, and play 35 games at 1B. The latter may be a little high.
Offensively, I think anything could happen, but I'll go with:
.270/.340/.490 with 30 doubles, 21 home runs and about 91 RBI.
Consider all my numbers as Over/Under, and get your predictions for Justin Morneau in.