The full lineup for World Series of Fighting 8 is starting to take shape, as the promotion has added four preliminary bouts. MMAjunkie today confirmed with WSOF President Ray Sefo that the night’s four-fight preliminary lineup will include heavyweights Scott Barrett  vs. Derrick Mehmen , lightweights Luis Palomino  vs. Rich Patishnock , flyweights Sidemar Honorio  vs. Alexis Vila  and featherweights Freddy Assuncao  vs. Brenson Hansen