Publishers treat game developers as subcontractors. Game name is a brand for them, and they hire whoever they can to develop Game Name +1. Many gamers fall for that.
This is WRONG. You should treat game developers like music fans treat their bands: whenever a notable musician leaves, fans of his work follow him to a new band/project. Music publishers don't hire a random band to record Highway To Hell 2. Only AC/DC can do that. No one is stupid enough to fall for that. Are we, as gamers, so stupid to fall for this trick ? Just because many of us are 13-17 ?
This is easier with music bands, because there's usually a direct 1:1 relation between a person and an instrument. You like the way instrument X sounds in some band. You check and it turns out it's played by guy Y. But you can still check the lead designer, lead programmer, writer, producer... Yes, it actually pays off to read the Credits screen ! Ignore it at your own peril.
Translating this to game developer world:
Command&Conquer was originally developed by Westwood Studios. Later, the developer was essentially annihilated under the EA rule. EA now hires random developers to develop every next C&C game. What happened to former Westwood members ? They founded Petroglyph Games.
A loooong time ago Raven Software developed then highly regarded fantasy FPS games Heretic and Hexen. It had a long history of fantasy/RPG games in general. Fans kept asking Raven for another Heretic or Hexen for years. It didn't make sense. Almost all developers of Hexen and Heretic now work in HumanHead Studios.
Fans expected a lot from Heroes of Might and Magic 5 and 6. They shouldn't. Heroes 1-4 were developed by New World Computing. The team is now dispersed, and Heroes5&6 were made by Nival and Black Hole. Not even the same developer, let alone the same people.
Diablo I and Diablo II were developed by Blizzard North. "Diablo" III is developed by Blizzard Irvine. Follow the creators of Diablo II instead:
Follow individual game developers, not game titles. Game title is just a label.