I too can't wait until I'm classified under the "normal" BMI.
I can't wait to see what I look like when I lose 20 more pounds. (20 pounds ago to now was a night and day change! I can't wait to see what happens next!)
I can't wait until I can wear a bikini and feel like a total hottie.
I can't wait until I can say my size M belt is too big for me. (I shrunk out of my XL belt!

)
I can't wait until I'm a size 6.
I can't wait to go clothes shopping when I get to my goal weight.
Obviously: I can't wait to reach my goal weight!