Immigration Visa Cross Chargeability

Dear PJiang, Xiao Bai Tu,

How does the "Visa Cross-chargeability" regulation affect my pending I-485?
I am H-1B visa holder born in mainland China and my wife, a H-4 visa holder, was born in Hong Kong . I am the primary applicant for my employment-based I-485.

EB-3
PERM Priority Date: Oct 2005.
I-140 Approval Date: May 2006.
I-485 Receipt Date: July 2007.

Given current (employment-based) immigration visa quota retrogression, will USCIS automatically process my case under Cross-chargeability category or my attorney needed to emphasize my case's Cross-chargeability affiliation when submitting I-485?

Thank you!