I may be late, but my ideas for K. Rool personas are:
A British persona, General K. Roollis, so that the Kongs would say, "The Kremlings are coming! The Kremlings are coming!" Also to pay homage to Rareware, who made the original trilogy and are British.
The other one is: Kernel K Roolders! He opens up a food restaurant chain called KFC (Kremling's Fried Chicken) and has his minions hunt down all birds, including the Banana Birds.
And if you release Squawks from a crate or play as him, the bad guys will go into frenzy mode and try to get Squawks, meaning you will have to be more careful to protect him.
I already shared these ideas with
R
RetrogamerMax
, by the way.