Even a Lion King hater troll recognises a few good stuff in TLK, and one of these is that Scar is a great villain. Most would dare to say it's one of the best villains ever. And I think he's N°1. The voice, the design. He's perfect.
What the hell are they doing in the remake?
They are supposed to make a realistic lion, that's what everyone says. But they didn't do it. There are no lions that look like that. HE'S UGLY. Lions are not ugly, they can be deformed by scars but that's all. Scar wasn't ugly in the original film, he just looked evil. I attach a picture of a lion that lives in Masai Mara Game Reserve (Kenya) who could have been a good inspiration for this.
I have nothing against Chiwetel Eljofor but as long as the trailer goes, he did a horrible job (perhaps not only his fault but also the director's). Scar was evil but refined, double crossing, now he's just an ambitious bully, as we can hear when he tells Simba to "Run away and never return" or when he announces that he's the new king.
Sadly, I don't think this Scar will add anything.