To me, based on what Bendis has said, this will be more of a reset of sorts for the character and less a full on reboot. To me a reset is more what , say, the Loeb and Kelly did in 99, Which was not making it their business to toss out anything previously done, but changing focus, weaving in new plots and themes and organically change and retcon things as you go. All the previous stories are still there, but the focus is on building out, not looking back.A reboot is pretty much ripping out entire swaths of stories and replacing them with new stories or new elements to existing stories and go in a radically new direction that doesn't flow from what came before, and going out of their way to back track and establish new canon. I.E. 1986 and 2011. Rebirth to me was a bit of both. It was a combination reset and reboot.