Rankin isn't mentioned in those 'to bat' on Cricinfo.
I don't think you are allowed to change your team once you start to bat because otherwise what would stop a team struggling for runs sticking another batsman (or even better, an all-rounder) in at the end?
Makes sense, although it still seems unfair that one side is allowed to sub in a ringer and the other isn't. It's not as if Rankin's stand-in has played any part in the game so far, whereas Surrey have been able to use 6 front line bowlers.
According to Cricinfo Surrey are playing 11 from 12, the Bears 11 from 11, so it looks like Rankin will be sitting the game out.
Woakes is shown as part of England's Champions Trophy squad of 15 so I guess he is out for a few weeks.