Walker has played just three games for Spurs since joining from Sheffield United in 2009 and would be open to another loan move if he does not get more first-team action this season.
"It's a possibility," he said. "I went to Villa and I thought I did okay. To be in the England squad I need to be playing Premier League football and, hopefully, I can do that at Tottenham.
"I have spoken to Harry Redknapp and he said I would be in contention for the right-back spot."