My biggest hope for a future release of this movie would be:
1: The effects are improved and maybe even new CGI upgrades where its neeeded, and the FX effects with the puppet to be clear and detailed, several rumors say they have shown a such edition to testaudiences and it looked good.
2: David fincher gets to edit the movie and if disney/fox allows it: he get to film or refilm whatever scene he wants and get the actors back, those alive that say, and do the best version and the final version of the movie.
3: Edit in the alien had captured some prisoners and had them cooccooned, which would make it seem smarter and not just mindless killer.
4: The intro is changed to just shows facehuggers emerging from the drop ship and new intro of the movie.