I doubt that it will go that high. In China they are already claiming a peak of 265kW at the rear with a pack that is "only" down 20kW to the Panasonic.
That is apparently based of the old claim of 202kW for the 3D1, which puts it at 267kW, similar to the Chinese claim.
We can all repeat ourselves over and over. My money is on 430-437kW max from the Panasonic in the US, just as the old car or even a little lower at 430kW, as I've seen the Hairpin motors showing a little less power draw compared to the old wire 3D1's.