The fact is, the decision bringing back Ripley and Hicks would be as polarizing as the decisionof not bringing them back. There will be haters from one side or another, so just ignore that and move on.
That is true, personally I would like both to bring them back and to leave them dead depending on how its done, Alien 3 as touchy of a subject it is, finished their story and I am fine with that but like most Aliens fans, I was annoyed by how abrupt it was and I would have liked to see Hicks as the new protagonist, sure I would like to see Ripley again too but the franchise shouldn't have to depend on her to continue, as someone here recently said, she was a survivor by chance, her constant involvement would be silly (unless given a really good reason) and don't get me started on number 8. I hate the hybrid storyline, just way too overboard.
We should wait and see, no enough info right now to judge the film, and it shouldn't be judged until it is released.