Originally Posted by The Real Snow
I don't see why they wouldn't be.
Well, looking at the map from the video and screen shots (I did make the mistake of saying all melee, Ashe, Annie and Lux are shown), it looks incredibly small with gap closers being very, very effective.
And you have to put yourself at risk to achieve an objective anyways. It also looks like there is almost no way to farm, so the characters who don't need a lot of it at level one will dominate (XZ, Garen, Renekton, Jarvan, etc.)