Future UFC champions in each weight division

LowKick.com recently predicted a future champion in each weigh division of the UFC:

Heavyweight

Current Champ: Cain Velasquez

Future Champ: Stefan Struve

Age: 23

Record: 21-4

Light Heavyweight

Current Champ: Jon Jones

Future Champ: Phil Davis

Age: 26

Record: 9-0

Middleweight

Current Champ: Anderson Silva

Future Champ: Court McGee

Age: 26

Record: 13-1

Welterweight

Current Champ:Georges St. Pierre

Future Champ: Jake Ellenberger

Age: 25

Record: 24-5

Lightweight

Current Champ: Frankie Edgar

Future Champ: Edson Barboza

Age: 25

Record: 8-0

Featherweight

Current Champ: Jose Aldo

Future Champ: Josh Grispi

Age: 22

Record: 14-2

Bantamweight

Current Champ: Dominick Cruz

Future Champ: Renan Barao

Age: 24

Record: 25-1

Who would you add to the list not as contenders, but as future world champions?