Maybe we can learn some more tidbits like if the developers really were influenced by bomberman or how the character came into being, to find out if it really was a coincidence.
I'm guessing none of the other characters are similar to bomberman ones sicne it wasn't mentioned by the OP. I haven't played Borderlands myself.
To all of the folks who have never played Borderlands, I'd have to say that it is actually no where NEAR like a Bomberman game. Just the great resemblance between both Liliths.
There's no conclusive evidence that this Lilith is even related to the other one; not to mention that even if she was visually inspired by our Lilith, she wouldn't be canonically related anyway. Honestly, it's probably just a weird coincidence, or at least unintentional.
I'd hate to revive such an old thread, however, I've been playing Borderlands lately with friends, and who do I call dibs on? Lilith of course! And after googling "Lilith Bomberman Borderlands" for the heck of it, I found that we aren't the only ones who spotted this odd similarity. :O