Not surprised to see it back. After all I believe the one Bruce had was a prototype. He probably just asked Lucius for another one
I think that looks like the Bat-Pod behind it to me.
If the third movie is coming full circle with "Batman Begins" than I could see them coming back to this line
Lucius Fox: She was built as a bridging vehicle. During combat, two of these
would jump over a river, towing cables. Over here on the throttle, flip that open and throttle up. This will boost you into a rampless jump.
So Bruce got the second Tumbler.