We just ordered an Advanced Gear Kit, and it still comes with the old rack gears that have been discontinued. This is not a problem for us, as we ordered it specifically for the bevel and worm gears, but out of curiosity, is it planned that these will eventually ship with the new rack gear when the stock of Version 1 runs out? I was surprised we received them, because they are no longer available as a stand alone item, due to V2 taking over.
Alternatively, if you are a fan of the old rack gear, get the advanced gear kit!