Johnson delivered a telling display in the FA Cup win over Carlisle on Sunday and followed that up with a brilliant cameo performance off the bench against Manchester United on Tuesday.
He told the Daily Express: "I'm probably too far away now. His (Hodgson's] mind is made up. He has used 30-odd players and I haven't been one of them, but I won't give up. Theo Walcott is quite a good friend of mine so it wasn't nice to see that happen to him but you have to take your chance.
"You never know, he [Hodgson] might come and watch a few of our games. Playing in big games against big teams helps and hopefully he had someone watching on Tuesday.
"It's always going to be in the back of your mind to go to a World Cup having been involved with England for a few years until I signed for Sunderland. It's still difficult, but you never know, stranger things have happened."