The National Football Museum of England has set a date for their opening: Friday 6 July.
This was stated in their web-based newsletter distributed today.
"The museum is home to the biggest and best football collection in the world, and will be filled with exciting, interactive exhibits for all the family. Inside, you'll be able to explore how the rules set out in England in the 19th Century grew into the world's biggest sport and how football has affected everything from politics, to social change, to art, fashion and the media."
More can be read on their website's article on the matter: National Football Museum.