Preparing 1000 computers with Windows 7, two months before releasing them to users. Issues?

Hi there

I am preparing about 1000 computers with windows 7, deployed with WDS+MDT. Deployment process, joins computer to my domain. After joining and shutting computers down, I plan to stock these computers into my warehouse until November 2013

I plan to assign these computers at least two months after their original deployment with joining domain. 

Is there some known issue in this process? I am thinking to computer's password expiration and eventually to problems when they restart two months after original domain affiliation. 

Any suggestion? 

Thanks in advance