No.
The previous, non-unibody design was with us from the powerbook days. That is, from 2000 through 2008. That's 8 years for the mathematically challenged. The unibody design was introduced only 3 years ago, in 2008.
Apple changed their manufacturing plants completely to be able to actually make the unibodies. I doubt they'll spend the billions necessary to change them up again after only 3 years use.
The previous, non-unibody design was with us from the powerbook days. That is, from 2000 through 2008. That's 8 years for the mathematically challenged. The unibody design was introduced only 3 years ago, in 2008.
Apple changed their manufacturing plants completely to be able to actually make the unibodies. I doubt they'll spend the billions necessary to change them up again after only 3 years use.