In terms of the overall package, it never got better than this:
Although I have a lot of nostalgia for "Alien Quadrilogy" the 2010 Blu-ray 's just an upgrade in every single regard, Alien's 4K Blu-ray looks far superior for the Threatrical Version, but the "Director's Cut" on it is butchered.
Spoiler
And Aliens might as well not have a 4K Blu-ray release.