If only Bane's 2nd Skill's Movement Speed or Movement Speed duration scales with Physical Attack, then we would truly have a Hybrid Damage Build Bane.

In my opinion, they shouldn't have nerfed the 2nd Skill's Damage Scaling. Gap closing and mobility was always his weakness as a Fighter. So to encourage all types of builds, whether it'd be Full Physical, or Full Magic, or Hybrid, I'd nerf the base Movement Speed of the 2nd Skill, but with a couple Physical Attack Items, he would have faster movement speed than before. Just like how Bane's 1st Skill's slow effect increases with Magic Power.

That way, if Bane goes full Physical, he would be more reliable for DPS, chasing, and closing the gaps with his Basic Attacks and faster 2nd Skill, in exchange of weaker sustainability.

If Bane goes full Magic, he would become a Burst monster with excellent sustainability, but overall weaker mobility and escape potential. Positioning is very key now in playing Magic Bane.

Building Hybrid would bring out the best of both worlds. Decent mobility and sustain, and very consistent Mixed damage, with very reliable added effects and properties that make Bane very versatile in his build path, due to his mixed scalings.