Yeah not more of the same, why would they do it??
Starcraft -> Starcraft 2
Diablo -> Diablo 2 -> Diablo 3
Warcraft -> Warcraft 2 -> Warcraft 3 -> Warcraft 3 : Frozen Throne
WOW -> WOW : TBC -> WOW : WOTLK -> WOW : Cata
As you can see it's definately not profitable to make the same kind of product is it?