Walker has been out of action since March, with abdominal surgery undertaken during the summer.
The 24-year-old full-back is still out of training, but a report in the Evening Standard has listed a potential return for as early as November.
The injury suffered in the Europa League tie with Benfica last season looked to be healing in time for the start of the current campaign, but a flaring up during the Lilywhites pre-season tour of the United States has prolonged his comeback.
With Mauricio Pochettino said to be keen on incorporating England international Walker into his first-team set-up, the news that he could be back before the turn of the year is promising. Spurs face a tough run of fixtures at the end of November, with the next international break leading into Premier League fixtures with Hull and Everton either side of a European tie at home to Partizan Belgrade.
Eric Dier and Kyle Naughton have been used in the vacant right-back position for the duration of the season, although Dier, notionally a central defender, offers little in the way of ability that Walker does, and Naughton has himself suffered an injury that could keep him out until the new year.
The return of the 24-year-old will also be welcome news for the England international set-up, with Liverpool's Glen Johnson once again failing to impress this term, and Callum Chambers being forced to make the step up from the Under-21 squad due to lack of defensive options.