France international Ndombele joined Tottenham from Lyon for a club-record fee reported to be around £63million in July 2019, ending long-running links with a switch to PSG.
He endured a difficult first campaign in north London but performances have improved in 2020-21, the 24-year-old featuring 26 times for Spurs in all competitions.
Ndombele remains under contract with Tottenham until 2025 and, while not actively seeking a transfer, he is not ruling out the prospect of returning to France with PSG, where ex-Spurs boss Mauricio Pochettino is now in charge.
"I'm a boy from the Paris region. Wearing the Paris jersey one day? Why not. But today I'm at Tottenham, and it's going well," he told Telefoot.
"I spoke with Kylian about possibly coming to PSG - two or three years in a row we discussed it. It didn't happen and today at Tottenham it's going well, but why not in the future?"
Ndombele was left out of Tottenham's squad on occasions last season, but he has been praised by boss Jose Mourinho for working hard off the field to become a regular.
He ranks particularly high for dribbles, completing an average of 3.02 per game in the Premier League this term.
That places the midfielder behind only Christian Pulisic (3.28), Andre-Frank Zambo Anguissa (3.53), Allan Saint-Maximin (4.66) and Adama Traore (5.24) among those to have played at least 10 games.
With his brace against Wycombe Wanderers in the FA Cup last Monday, Ndombele became the first Spurs player to score at least twice in a match as a substitute since Roman Pavlyuchenko against Birmingham City in May 2011.
Reflecting on a mixed time at Tottenham, Ndombele said: "It was tough. I questioned myself a lot, but now the page is turned.
"It's true that at a certain moment I wanted to leave, I didn't feel in the right place. I told them I wanted out. They didn't want me to go."
Ndombele is hopeful his form could see him earn a first appearance for France since June 2019 with the rescheduled Euro 2020 tournament on the horizon.
"Of course I miss the France team," he said. "As a competitor we want to be one of the best.
"The European Championship remains a goal in the back of my mind. If I do well at club level, why not be called up?"