The black line stuff was decided pretty early, but yeah it's most likely more for the FPS shit. Game does look great though in return, so eh.
I watched a few videos of people playing, it looks alright. Has quite a lot of cutscenes(though it was early in the game so could just be story stuff to show the characters and what not) and a bunch of QTE, but most of the combat looked otherwise fairly standard shooting stuff with cover, rolls, multiple weapons with multiple fire modes, so didn't look horrible. Main concern I'd have is the length of the game, it looks like a 6-8hours game which kinda sucks.
I might still get it though cause it's basically 20euros if I buy the bundle, and I need to get a PS4 so it's that or Drive Club and I don't know how much I'd bother with Drive Club.