What tier would they be in?

M. Torterra
Type: Grass/Ground
Ability: Solid Rock
Base Stats: 95/139/145/75/125/46

M. Infernape
Type: Fire/Fighting
Ability: Adaptability
Base Stats: 76/124/81/124/81/148

M. Empoleon
Type: Water/Steel
Ability: Slush Rush
Base Stats: 84/106/118/141/121/60

M. Purugly
Type: Normal
Ability: Fur Coat
Base Stats: 71/112/74/74/109/112

M. Skuntank
Type: Poison/Dark
Ability: Adaptability
Base Stats: 103/113/97/91/91/84

M. Toxicroak
Type: Poison/Fighting
Ability: No Guard
Base Stats: 83/136/75/106/75/115

M. Weavile
Type: Dark/Ice
Ability: Technician
Base Stats: 70/155/85/55/95/150

M. Drapion
Type: Poison/Dark
Ability: Tough Claws
Base Stats: 70/110/140/60/95/125

M. Rhyperior
Type: Ground/Rock
Ability: Solid Rock
Base Stats: 115/170/160/55/95/40

M. Magmortar
Type: Fire
Ability: Mega Launcher
Base Stats: 75/105/87/165/115/93
Now learns: Aura Sphere, Dragon Pulse, Dark Pulse

Celestial Arceus
Type: Normal
Ability: Omnipotent (works like Protean and Adaptability)
Base Stats: 120/140/140/140/140/120
Note: Doesn't require a Mega Stone.

Assuming if the D/P remakes are going to have the Platinum Dex.