I know the new X5 is getting it so i guess all models will eventually. Check with your dealership, but i reckon it will be on all new builds from week 10.
Apparently the revised i-drive will also be faster and have new graphics.
By the way how did you find DMS? I thought about seeing them re tuning the 335i when i get it. Do you know if they do a tuning kit for a 335i?