Complex sentence: In 2012, the band said that they were planning to reunite again, this time again with Conlon, but without Brown, who refused to take part in the reunion, claiming he no longer wanted to be in the music industry.
Split into simpler sentences: In 2012, the band said that they were planning to reunite again, this time with Conlon but without Brown. Brown refused to take part in the reunion, claiming he no longer wanted to be in the music industry.