Root's last match of the summer will be the T20 against Pakistan, at Old Trafford, on Wednesday while Bairstow's season is now finished unless he is given a late call-up to the T20 squad due to Jos Buttler's fitness after the hamstring niggle which kept him out of the final two ODIs.
A decision on that will be taken after England train on Tuesday, although with Sam Billings already in the squad it may be decided that no reinforcements are needed even if doubts remain over Buttler.
Chris Woakes and Jason Roy have been made available for the Royal London final at Lord's on September 17, but Woakes will miss Warwickshire's final Championship match against Lancashire as he prepares for the upcoming tours to Bangladesh and India.
Jake Ball, who was added to the one-day squad after David Willey's hand injury, is available for Nottinghamshire's final two Championship matches as they attempt last-ditch survival in Division One. Liam Dawson, who made his ODI debut in Cardiff, is available for Hampshire who are also in the relegation battle having been left out of the T20 side.
A decision on the availability of the rest of England's T20 squad for the remainder of the season will be made after Wednesday's match.