The 25-year-old continues to be heavily linked with a move to Real Madrid following previous admissions that his heart remains in Spain with his young family.
He maintains that no move will be made this summer, with the 2018-19 campaign set to be spent at Stamford Bridge, but is yet to decide on whether he will be committing to a new contract and an extended stay in west London.
Quizzed on his future by Sporza, Courtois said: “If I go to the World Cup with a clear idea, sign or wait another year, then I have a clear head at the tournament.
“I am still proud to play at Chelsea and I want to achieve success.
“I have one year [left on my] contract and feel good at Chelsea, at the end of the season we will sit down together and set out a vision.
“I know that I will be at Chelsea next year as well.”
Goal revealed in December that Chelsea are prepared to make Courtois the world’s highest paid goalkeeper in an effort to get him to pen fresh terms.
He has been with the Blues since 2011, with 147 appearances made since spending the first three years after joining from Genk out on loan at Atletico.
Two Premier League titles and a League Cup triumph have been savoured during his time at Stamford Bridge, with Chelsea benefitting from having a reliable option as their last line of defence.