"We are going to up the gear and challenge ourselves for the next four years to reach greater heights because we believe the sky is the limit."
Mosimane said his priority is to add another star (Champions League) while also challenging for more domestic titles.
"I believe the best is yet to come ... we are still going to celebrate more trophies. At Sundowns, we will not stop until we deliver the second [CAF championship] star."
The 55-year-old mentor has already won the Telkom Knockout title this season and he still has a chance of adding the Nedbank Cup and the Absa Premiership title.
Before the PSL matches were suspended, Sundowns were in the semifinal of the Nedbank Cup. They are also four points behind log leaders Kaizer Chiefs in the league race with a game in hand.
Although he is pleased with what he has achieved, Mosimane is still hopeful that he will win more trophies with Sundowns.
"Sundowns are growing as a club, expectations are growing. We need to see if we are in the position to deal with the demand that is expected and if we feel we can handle the demand with what we have," he said.