I love the new textures and I think they fit well the new general style that modded Minecraft had acquired, but still I think there would surely be people who wish to play this mod on newer versions with the old textures we know from Hexxit. I think it would be a great idea if someone created a texture pack for them that could eventually even come together with the mod as you download it.

I don't intend on including the old textures myself. If you wish you can create a resourcepack with the old textures.