I have to second everything that Human is saying. That mirrors my concerns exactly. For examply, my swill rounds at nats were polarized that I had to fight Kid Kadabra (which was a close match I lost due to an untimely miss) and Lucian Lachance (who outright beat me). After that all I could get was noobs, and one other person who beat me, and I was at the lower end of the 4-3ers due to fighting 4 noobs who went like 2-5 each. I am absolutely not advocating the destruction of Seniors (This can happen in Masters (maybe even Juniors) too), but more swiss means more luck. I don't know for sure, considering the fact that no one really knows anything besides format, so I guess we'll have to just wait and see. Maybe nats will fill up with noobs and we'll all be lucky.
And @theamericandream38: Nothing is beneficial for everyone in a subject this polarized, so either shut up, or try to look at it from both sides. I'm not saying everything is bad about the new format.