I was mostly--partially--joking about the DBZ thing, but I know of at least 3 different "Intended End Points" that fans have named: After Frieza, after Cell, & after Buu. Frankly, I'm not believing any of them until I see a Word of God. The series was no stranger to dramatic genre shifts, asspulls, & poorly placed comic relief before the Buu & Cell sagas, so that doesn't prove anything to me. And I liked DBZ just like every other 14-year-old.
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Oh, thanks Sleepy, I'd forgotten about Spyro. I'm going to be generous & say after Enter the Dragonfly, as well. It was pretty much dead after the original trilogy, but I think it COULD have made a comeback, albeit with difficulty, before they said, "Fuck it, gritty reboot." At that point, I stopped caring, because that's not what Spyro was about. However, Ripto actually did come back previously, in one of the GA games. Of course, I would have preferred the Sorceress or Gnasty Gnorc if they felt they HAD to bring someone back. I actually liked the breaths, it was pretty much the game's only saving grace.
On a similar note, .hack. You want to reboot the series into a darker, more steampunk setting? Fine. Go for it. Hell, I might even enjoy it. What I don't enjoy is Shooting the Shaggy Dog to make it happen. What the Hell? What was the point of those 4 games, 4 OVAs, 1 anime, a manga, & assloads of background material? For Aura to just fuck off & return everything to Square 1?