twanghang
Thanks, G. I plan on buying X3 Producer in the fall, so it should be good by then.

oops, I should have said 3-1-14 until now...I have no idea if the offer will be there in the fall.

Thanks for the clarification. I would think that by fall, it would be shipping with AD2 embedded just as AD1 is currently.

twanghang
Thanks for the clarification. I would think that by fall, it would be shipping with AD2 embedded just as AD1 is currently.

AD1 is bundled with Sonar Producer - not embedded. Cakewalk provides a license and you install it yourself.
but yes it appears that you will get the v2 upgrade free
 
Here the details from Cake:  http://www.cakewalk.com/Page/Addictive-Drums-2-Upgrade-with-SONAR-X3-Producer 
 
Partial excerpt:

Addictive Drums 2 Upgrade with SONAR X3 Producer

Addictive Drums 2 was released on May 13, 2014. If you Buy SONAR X3 Producer or Upgrade today you will receive a free Upgrade to Addictive Drums 2.  What does this mean for SONAR X3 Producer customers who received Addictive Drums 1 with their purchase? Please read the FAQ from XLN Audio below!

Thanks to TheSteven. Bundeled, not embedded - crucial distinction that I missed. Thanks also for the excerpt.