There was no battery upgrade with the Raven. That is still in the works. Battery upgrade should yield a 400 mile car, but going from current to 400 isn't a big deal.
There was a battery *revision*, to version "E" of the 100kWh battery, but it is still unknown what changes that might entail. It may only be wiring for the 200kW charging, but something changed enough to warrant a new version number.