New Gym Defense Tier List update for Gen 5?

Is anyone aware as to if there is any intention to update the defense tier list with the release of Gen 5? I think this would be very helpful and allow for folks like me who may be out of the loop on Gen 4 and Gen 5 Pokémon that may be useful. I appreciate any help or updates. Thank you!

I don’t think any of the current Gen 5 Pokemon are actually good on defense.