No decision on the format of the Champions League post 2024 is likely until next autumn or the spring of 2021, according to the president of the European Leagues umbrella group.
There has been a great deal of debate about how European club competition may look from the 2024-25 season onwards, and Lars-Christer Olsson expects it will be around a year at least until a consensus is reached.
However, he did say that a proposal to introduce promotion and relegation between the tiers of competition, increase the number of group stage matches and for teams to qualify for Europe based on continental performance were "a no go".
"I think there will be no real decision before the autumn of 2020 and perhaps not until spring 2021. There is no need to rush it any faster," he said at a European Leagues general assembly press conference in London.
Olsson said there was no support among the clubs and leagues at the two-day gathering to make changes which would mean domestic performance was no longer the route into European competition.
Juventus president Andrea Agnelli, who is also the chairman of the European Club Association, had backed a system of four groups of eight in the Champions League, meaning more group stage games, and suggested that the top 24 would qualify for the next season's Champions League.
"If we are listening to all those who have been active on Thursday at our clubs advisory platform and on Friday in our discussions with the leagues, it's a no go to propose a closed league on top of the European pyramid," Olsson said.
The Swede, who served as UEFA chief executive between 2003 and 2007, also referred to comments made by Chelsea manager Frank Lampard, who addressed delegates on Thursday afternoon.
"He was not asked to have an opinion but he said on his own that he doesn't want to see a closed league," Olsson added.
Lampard talked about the importance of Premier League teams having the "carrot" of reaching Europe via domestic competition, and expressed fears that additional European games could lead to player burnout.
"The year Chelsea won the Champions League (2012) we came second the year before," the Blues boss, a former favourite as a player at Stamford Bridge, said.
"We know the format, we know what it is, but whenever you play in the Champions League you know you're playing against the best and for me that is the format and the beauty of it.
"You also have this thing where you have to leave the carrot of being competitive. You look at the Premier League table - Leicester, they're getting excited, what can they do? Other teams like West Ham and Everton, teams that are spending and moving forward, trying to get into that bracket because they know the rewards of that.
"As a manager I actually feel the weight of games more than I did as a player. As a manager you're thinking about how can you keep the team fresh, and it's a challenge with all the competitions we have now.
"If you ask me can we play more European games, I personally don't believe you can fit them in amongst our busy schedule. I would find it hard to keep the quality level and the freshness within the players."