You know, as excited as I get about each new game that comes out, there's always the thought in the back of my mind that eventually the characters from the previous games will die and we won't get the options for cameos from them anymore. It worries me especially with Alistair who's life line is limited to begin with.
To be honest, I'm hoping the next game makes a significant enough time skip to clean the slate for older characters. Like jump twenty, thirty, fifty years ahead. This is mostly based on my personal annoyance at how fandom keeps demanding that 1) every little insignificant wallpaper character comes back in a major world-shattering role or 2) that the Warden becomes the protagonist of the franchise again, even though she/he's dead in at least half of the fanbase's playthroughs (and most of mine, personal gripe yeah). So I'd love if we could do a big jump forward to make sure everyone is dead, no more cameos for anyone. Cut the whining at the root.
But it also comes from a sort of wistfulness that for every repeat character we get, we're losing a new character on the side. Like in Inquisition, if we didn't get a repeat of Varric and Leliana (who were seriously not in need of repeats, they have enough material centered on them as it is), we could have got a whole new companion, or maybe another returning minor-turned-major character like Cullen, in place of those two. I'd much rather have seen Charade Amell coming back as a fully developed companion and a brand new character as advisor than go with rehashes of the dev's favorites.
So... yeah, while it would be sad to have to acknowlege that all our favorites are finally dead for good and there's nothing we can do about it... it would have its upsides.