It is the first WWE game to include the promotion 's ECW brand .
It is the sequel to 2006 's WWE SmackDown vs. Raw 2007 , succeeded by WWE SmackDown vs. Raw 2009 in 2008 .
sequel is the first WWE sequel to include the promotion 's ECW brand .
It is the sequel to 2006 's WWE SmackDown vs. Raw 2007 , succeeded by WWE SmackDown vs. Raw 2009 in 2008 .