I've heard about dota2. It's going to have to stand out somehow and be amazing for me to switch from league of legends. It's valve, so I know it's going to be good, but I'm also really fond of LoL.
It's like starcraft 2's situation. Sure it's shiny, new and polished. Still doesn't make me like it more than the original. It feels different. Sequels don't always capture the same feel. Sometimes newer isn't better.