Gosh. Good to hear that the ones I predicted got approved. So here is also more ammendments(But can be wrong so dont rely on me)
1. If I-140 is approved already and LUD for 485 changes twice,also finger printing done in 2004, means approval of 485 (like lgkang)
2. If Concurrent I-140/485, and LUD changes twice just for 140 with no LUD change in 485 means RFE (Like my case) or Intend to deny(I saw some cases) for I-140
3. If Concurrent I-140/485, and LUD changes twice for both I-140/485 means either approval (like gc_now) or denail(I saw some cases) for I-140.