My guess is that it will have Blur. My hope is that it does not because Blur would be a major disadvantage on that brand new UI. My rationale is that the first time Motorola introduced Blur it drove users away from the device by the thousands b/c of its clunkiness, it's pudginess, and its tortoiseness.
With the BIONIC, they've finally got it working (mostly) right - only to have Google go and completely re-design the UI and the underpinnings of Android. Thus, I'm betting that Motorola will have to go back to the drawing board and redesign Blur again - and I'm afraid it will have the same results as the original did, until Motorola devs get it figured out and tweak it nicely for Android 4.1 / 5.0. by that time I'll probably be long gone from the BIONIC unless they give me an unlocked bootloader.