All they would have to do is raise the max gross until the climb falls to 667 fpm.
Interesting question, John!
It's a little more complex than this, but I think the normal/utility category only requires a 500 fpm climb at sea level under standard day conditions (I need to review). I'd think the 162 could probably do that at our 150's 1600 lbs gross (or heavier?), and perhaps could be certificated as such, if Cessna decides to pursue it!
Following the improvements to the 162 should prove to be quite interesting!
