Sadly no, Hook isn't available for a legal download at this time. The Sony company who made this game owns the rights to it and they haven't released Hook in the Nintendo shop channel as they are rivals against the Nintendo company. Also the game "Hook" is a trademark game by Tristar Pictures.
As for a Playstation 3, 4 download release. It sadly hasn't happened. It's unknown if "Hook" will ever see a legal download release.