Cowell plans global music show like Top of the PopsThe X Factor judge told Newsbeat last December that he wanted to launch a weekly chart show on British TV but now admits it wouldn't be cost effective just doing it in the UK.
He said: "It would need to be bigger than just one country.
"That's what we are thinking about but I don't think this is for now, it's for a year down the line."
Top of the Pops was dropped in 2006 after 42 years because of falling ratings.
Earlier this year, the BBC announced it was going to show weekly reruns in its original time slot on BBC Four.
The series began in 1964 and was originally recorded in a Manchester church, though many editions were lost or taped over.
Although the show was dropped five years ago, it is brought back every year for a Christmas Day edition.
On Tuesday, Simon Cowell's production company Syco also announced plans to launch a new game show beginning on ITV1 this summer.
The programme, called Red Or Black and hosted by Ant & Dec, will be screened every night for a week.
Each show will feature simple choices for contestants to make, such as picking the winner from two cars in a stunt car race.