The rebid mainly affects the Swedish men's 4x100 meter freestyle team, where Eliasson is self-signed.
He was part of the Swedish racing team that finished eleventh at the WC in June.
It was the first time in eleven years that Sweden had a men's team in the WC.
Marcus Holmquist, Jönköping, will probably join the freestyle team instead of Isak Eliasson.
Individually, Isak Eliasson would have swum 50 and 100 meters freestyle.