>>12328527The main problem with that is that the therians types dont make much sense when compared the the cardinal beasts.
It goes:
Dragon: Wood(grass)
Bird: Fire
Tortoise: Water
Tiger: Metal(steel)
Other dragon(or kirin in some folklore): Earth(rock or ground)
None of the therians how ever share those types with the respective beasts. That, and the therians where credited to have been created late after the release of bw, specifically for b2w2.
If anything, nothing like this was planned and honestly I rather it not be true since, once again id the typings to match and none of the therians look majestic enough to represent those beasts, personally