Well for those who are interested, after digging around the web I found out there are steam workshop mods that are remaking a lot of the old Custom WC3 Maps for Dota 2. This includes but is not limited to Hero Line Wars, Run Kitty Run, Footmen Frenzy, Angel Arena, different variations of Tower Defense, and more. From what I understand most of these are still in early development, nor do I currently know the populace of these custom game types, but if someone needs an old WC3 fix then maybe you could load up your own lobby with friends and try them out.