"We have no comments," says press secretary Elisabeth Wanngård to the newspaper.
Busch has been replaced by Nike Örbrink, who is the party's group leader in the municipality of Stockholm.
She is the only party leader not participating in the debate, which SR describes as a mingle, "where thoughts and dreams can take place in a fun and relaxed environment," according to a press release.
The party leaders will, among other things, be asked to answer questions about their visions for the future and "what kind of country Sweden is as we approach 2050".
