Well... for the latest 1/4 Bruce Lee releases, EB labels him Bruce Lee. Not Way of the Dragon nor Enter the Dragon. Just plain old Bruce Lee 1/4.
So... just because its not under a specific licence, i dont think it means it won't have a look of a certain movie. It could be a Mullet Van Damme, with blue shirt and jeans, and that could still be considered "casual".
I think it comes down to which Van Damme era it goes down to. Whether the short hair cut, the mullet, or the spiked hair. Thats what i would actually want to vote on. But Casual and Martial Arts Gear seems to be the more sensable choice.