I'm not a big Springfield follower, but I had not heard of a Champion size Range Officer. It seems like an odd idea though. My understanding of the Range Officer is it is designed as a range/competition gun, hence the name of course.
The major reason for a Champion size gun is typically as a carry gun. Usually, you don't put adjustable sights on a carry gun (of course I don't know if they new model would have adjustable sights). The question would be, what is the intended use for a Champion sized gun with adjustable sights?