Jai Courtney was decent in Jack Reacher, but he had a smaller role and just had to be intimidating in that. I barely recognized him in the new Suicide Squad trailer, simply because he got the biggest laugh out of me.
Genisys was a charisma blackhole. Neither Courtney or Clarke could carry that film. It was a slight step up from Salvation, but not financially or critically strong enough to base more movies off.
Terminator will be back, but they're going back to the drawing board. They might need to let Arnie go though, coming up with increasingly convoluted reasons for an aging robot to be in the film isn't doing them any favors. They definitely need something in the win column. I don't know how much longer you can keep this franchise going when you have more shitty films than good ones.