Christopher Nolan is looking to cast Matthew McConaughey in his next big sci-fi film Interstellar. According to Deadline Nolan has offered him the part, so at this point we're just waiting to see if the actor accepts it or not.
I seriously doubt that McConaughy will say no to Nolan, so I think it's safe to say we'll be seeing these two talents working together in the near future. This would be a huge film for the actor, who will be playing a character named Cooper.
As of right now all that we know about the story is that it's based on scientific theories developed by Cal Tech physicist, Kip Thorne, and follows a group of explorers who travel through a wormhole. It's also being described as "a heroic interstellar voyage to the furthest reaches of our scientific understanding." I'm sure it will blow our minds.
McConaughy is a solid actor. Some movies he makes I like, others I don't, but this would be an incredibly refreshing project for him. I hope everything works out, and he takes the part.