|I give it 4 months tops, and a few failed Riot attempts to make it relevant to money making interests before its Twisted Treeline status.|
If LoL wants to be serious about e-sports, Dominion will be the format. Some people forget, to be a good (e)sport, it also must be fun to watch for the spectators. Having the action centered more around fights makes it much more fun to watch. Plus the games being much shorter makes it much more tournament friendly. Didn't any of you watch that recent DotA 2 tournament. Those matches went on forever.
There is nothing wrong with Summoner's Rift...but some of us (me especially) are ready to play something different. I mean this 5v5, 3-lane style has been the norm for like a decade, I'd like to see a true evolution in this genera besides tall grass.