Personally, I'm fine if all three of them die in Alien V, so long as it's
A. Not in the damned opening credits.
B. Serves the purposes of the story, not to just unload extra narrative weight.
and most importantly,
C. They had at least some form of happiness in the interim. I mean, 30 years of living as a family is more than enough payoff after the ending of Aliens. My biggest issue with Alien 3(besides that damned magical egg) was that it wiped out all the character development done in Aliens. That mother-daughter relationship with Ripley and Newt? Gone. So sad. The 'thing' she may have had going with Hicks? Not even mentioned. The grudging respect Ripley had for Bishop? Pssh, who cares? To me, why even bother with Aliens if you're going in the direction Alien 3 went? The only purpose that movie serves is to introduce the idea of the Queen. Other than that, it serves little narrative or emotional purpose to what happens in Alien 3.
I've always felt that Alien 3 is a wonderful sequel. To Alien. If they made that movie occur with Ripley still being the Nostromo's lifeboat, no Newt, Hicks or Bishop. You could even justify the egg on the lifeboat due to the eggmorphing technique from the Special Edition of Alien. But as a sequel to Aliens, Alien 3 just didn't work, IMO.