Gaffer Tape said:

Wait, they're recomping all the visual effects? I'm with TheBoost. Aren't we against that? I know I'm against that. I certainly hope they do branching because this just sounds extremely worrisome to me. I've never managed to complete my TOS DVD collection because the only ones that are available are those stupid CG versions.

They're only recompositing the effects because they were originally post-produced in SD. So, having them on Blu-ray would be pointless unless they recreated everything from scratch. Which they are doing. And TOS is available on Blu-ray with the ability to branch between both CG and old versions.