Wow, that is a really awesome mix you got there, bred from two rare dogs.
I think you need to research genetics if you want to know what the chance is of your dog becoming brindle. Brindle depend on recessive genes and is dominated by black (or so I've read). Since its mother was entirely black and its father was entirely white, there is little chance of your dog becoming a brindle if I'm being honest.
Then again, I'm not a pro at coat color genetics as of yet.
I think you need to research genetics if you want to know what the chance is of your dog becoming brindle. Brindle depend on recessive genes and is dominated by black (or so I've read). Since its mother was entirely black and its father was entirely white, there is little chance of your dog becoming a brindle if I'm being honest.
Then again, I'm not a pro at coat color genetics as of yet.