Facelifted 5 series and E70 X5 - a new option?

[xdrive]

Not sure whether you guys have seen the latest update on the 5 series (http://www.bmw.com/com/en/index_highend.html). The updated 5 series will be using the E70 transmission and shift lever and guess what, it will have an additional function - the PADDLE SHIFTERS on the steering wheel! Is this going to be an optional item for the E70 X5 as well? Why do they put it in the facelift 5-series and not the E70 X5 .... this is frustrating!