Last time I was at work I saw a little diddy on the pilots bulletin board regarding 737's returning to ORD. The pilots were informed that the plan at this point is to have 4 CA and FO bids for APR and 12 CA and FO bids for MAY. The first planned sequence for the bid is ORD-MSP-ORD-LAX overnight LAX-ORD. It didn't say when the sequence starts. I would assume at the schedule change on 7APR(I think that is when it is). Last time I checked it wasn't in SABRE yet either. Anyway, it is the start of getting the Stupid-80 off ORD-west coast.