1. It is too early for me to think about pattern. I am coping with the fact that FO memo has started!
2. I will go by my original analysis that not everyone will get benefit right now. Some people will get approval as test cases, but rest will come in separate queue before FO memo is fully implemented(% of people getting benefit of FO memo will keep on increasing with time though). People without FP and close to PTR of their category will have to wait a little longer. Maybe people who applied sometimes in 2004 will get FP notices soon.
3. Depends - for people of May 2003 - it is good to get 485 concurrently adjudicated. If it is streamlined process - then it is good to get 140 done for late 2003 application, as I have apprehension that 140 dates will not move as fast in coming days or may move back. (again I would love to be wrong on this point.)
Anyway it is good to get 140 approval as fast as you can. You will get some time to plan before you get 485 done.
I also see two patterns - EB2 cases getting benefit of memo and that all who got benefit recd RFE. Leave it open for speculations...