Edinburgh head coach Richard Cockerill says some senior players will be dropped for the match against Scarlets after the loss to Benetton.
Coach Wayne Pivac says the Scarlets will maintain the free-flowing style that won them the Pro12 title last year.
Ulster twice come from behind in a lively second half against Scarlets at the Kingspan Stadium in Belfast to secure a third successive Pro14 victory.
Lions Jonathan Davies and Ken Owens are both named in Scarlets' match day squad to face Ulster on Friday.
Audio & Video
John Andrew's late try seals a comeback win for Ulster against last year's champions Scarlets at Kingspan Stadium.
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