140 premium processing will have no effect on AP or 485 . Since your EAD is already approved ,most likely your AP will also be approved soon . Generally this is how it happens .
For AOS it will be a long wait depending upon your priority date,EB category ,Country of birth and receive date of your application . Other factors which may indirectly affect the case are name check ,security check .etc .
If your browse the forum you will see guys with approved 140 are waiting for years now . My 140 was approved in Sep 2003 and i'm still waiting for my 485 approval .
I hope the above helps .