The trio will all be out of contract at the end of the season after distinguished careers with the Blues and they could in theory have made their final appearances at Stamford Bridge in the goalless draw with Norwich.
The players undertook a lap of appreciation after Sunday's game, with tears flowing in what could be Terry, Lampard and Cole's farewell.
Intriguingly, the three England stalwarts and keeper Petr Cech - whose position is under threat from Thibaut Courtois - had their picture taken together on the pitch by young team-mate Tomas Kalas.
But Mourinho said: "They are with the club on their future.
"Now it's time to wait a little bit. The summer is a long summer for us.
"For the players involved in the World Cup it's a different story, but for us, as a club, it's a long time to be calm and to sit and to discuss and to analyse options and the market and possibilities."
Mourinho preferred to laugh rather than cry after watching his side's slim Premier League title hopes fade further on Sunday as the point saw them concede further ground to Manchester City and Liverpool.
He lamented referee Neil Swarbrick's decision not to award Eden Hazard a penalty when Ryan Bennett swiped wildly at the Belgium forward.
Mourinho rushed to his office in the Stamford Bridge tunnel to confirm his initial suspicions that a spot-kick should have been awarded.
He said: "I saw (it) in the game, but to confirm I had a quick run to my office and I arrived in time to watch (the replay) and then go back to the dug-out laughing."
With his assistant Rui Faria serving a six-match stadium ban following his dismissal against Sunderland and Mourinho facing Football Association disciplinary proceedings of his own, the Portuguese then kept his counsel.
He declined to assess the challenge on Andre Schurrle by Alex Tettey which might also have resulted in a spot-kick or discuss the moment when Norwich were denied by the officials when John Terry clattered Martin Olsson.
Mourinho added: "My assistant is in jail."
In assessing the first season of his second spell, Mourinho made a cryptic reference to the controversial losses to Aston Villa and Sunderland.
"Without festivals it would have been a better season," added Mourinho, who admitted the midweek Champions League exit may have sapped his side's energy levels.