From the Express and Star:
If #wba finish fourth they will visit #avfc at 12.30pm on Saturday, May 11, then host the return leg on Tuesday, May 14 (8pm). If they finish third, they will travel to either Derby/Boro/Bristol C at 5.15pm on the Saturday, with the home leg on Wednesday, May 15 (8pm). Clear?
WMP will definitely have been consulted with that and said they didn't want Villa v Albion as the late kick off, as Game B is always the later second kick off.