Complex sentence: As a result, in 2003, the first rumors about a new album's recording went round, but only a compilation ("Remixes") was released at that time, especially to make the fans wait because they wanted a new studio album.
Split into simpler sentences: As a result, in 2003, the first rumors about a new album's recording went round. But only the compilation "Remixes" was released at that time, especially in order to make the fans wait because they wanted a new studio album.