Perez and Racing Point teammate Lance Stroll are both under contract at Racing Point for 2021, when the team will be rebranded as Aston Martin.
But the team is known to have held talks with Sebastian Vettel about joining next year following the four-time world champion’s exit from Ferrari.
Perez previously said it would be “obvious” that he would leave the team if Vettel signed, given Stroll is the son of team owner Lawrence Stroll, but said at the Spanish Grand Prix it was a “matter of time” until speculation about his future came to an end.
Racing Point is yet to make any formal comment on its driver line-up for 2021, with team boss Otmar Szafnauer only saying in Spain that the “status quo” remained for the time being.
Speaking ahead of this weekend’s Belgian Grand Prix, Perez repeated his confidence that both he and the team wanted to continue to work together next year.
“I think it is, as I’ve said before, a matter of time,” Perez said.
“I feel really happy in the team. I believe in the project, I’ve been here for a while, and I can see how the team is going upwards. We all feel internally that everything is working well.
“We don’t see the reason why we should change anything. I don’t see any reason to change. I think we are enjoying a great season on track, and things are working really…