Pretty sure the front end is structurally identical under that new grill.
I doubt ARB would do a full redesign over a cosmetic refresh.
On the other hand...there ARE two bumper part numbers for 2008-11 vs. 2012-15. So who knows...
The pictures tell the tale. It's a new design. Check out the mesh down by the winch. Check the fog lights. Even the vertical structure supports of the bumper look thinner in the side profile pic.