Complex sentence: In February 2013, Rob Caggiano of Anthrax was announced to join the band as the new full time guitarist and the album will be released on April 8,2013 (GSA on April 5 and USA on April 9).
Split into simpler sentences: In February 2013, Rob Caggiano, formerly of Anthrax, was announced to join the band as the new full-time guitarist. It was also announced that their next album would be released on April 8,2013 (GSA on April 5 and USA on April 9).