Newsarama have provided us with the best looks at the team's new uniforms yet, with not only the cover for the first issue of the relaunch, but for issue #2 which will be with us next March. There's also a black & white design sketch from Leonard Kirk.
Here's some previous quotes from Robinson on the relaunch.
"What I hope to do is tie in their past without making it too referential and (touch on) how the past can affect the future. While I'm not reinventing the book, I'm certainly adding a side to it we maybe haven't seen for a while. We're going to see the fragmentation of the family due to villainous outside forces that are slowing picking at them and eroding them. The arc I'm going to be telling is basically the fall and the rise of the Fantastic Four, and especially the fall and rise of Johnny Storm. That whole world of superstardom and falling prey to the temptations and the travails of it will be an aspect of it based upon things that happen to Johnny as the Human Torch. Both things tie in with each other and are a part of the nefarious bigger picture. For me it really started to happen with John Byrne (in the '80s) where he started to really make Sue less of the Invisible Woman and, even though that's her name, give her this whole range of powers and abilities around her power — to make her in many ways the strongest and most versatile member of the team. They're all geniuses and all have superpowers and they come from exotic alien or underground locations but they're still kids.