If the supra is gonna get a revamp YoY. I dont think it's impossible. Initial R35 release was cheap compared to where it is now. Power on that is significantly higher than model year 1.
I was following the forums since late 2018. No where did it say a new engine was going to be used 6 months after initial release. Toyota shot them selves in the foot. The remaining LEs are going to either sit or be heavily discounted now because the MY2021 is just around the corner.
I wouldn't really class it as high performance. Let's not push the mk5 on to a pedestal like the mk4 just so soon. It's a generic bmw engine and I wouldnt class their cars high performance.