todd-black submitted a new blog post Blizzard Talks Future Of Overwatch Competitive Play Continue reading the Original Blog Post.
I'm sure professional tournaments will inevitably just bring in more balance to the game because there are just some exploits that can not be seen until the pros all get together and start doing it too much where you could see a pattern. I have seen other games benefit a lot from having tournaments as well.
I think Overwatch is going to be a pretty dominant game in the e-sports scene, it has a lot of potential and many people seem to love it. Blizzard just needs a couple of years to establish Overwatch, let's remember that League of Legends wasn't popular at the start.