I think this needs a whole load of ex players attending - Chris Waddle, David Hirst, Benito Carbone, Gary Megson, etc etc. Get employees on the phone to hundreds of ex players welcoming them back all day Monday. Say Wednesday needs you, get as many ex players from the last 40 years at the game as possible.
Then start announcing them on socials one by one on Monday and Tuesday. As many legends as possible. ‘Chris Waddle’s going to be there to support the lads, are you?’.