GothmogII said:
Stargate was pretty bad for that. Oh, the Gouald are defeated...now what? How about a super-ancient and powerful Gould? Oh...he's dead now. Replicators! Oh now they're done too...hmm, oh, a super powerful space church!
I actually think they handled it rather tactfully. Not as contrived as you make it out to be, they definitely seemed to have it planned out well in advance.
For example, the replicators were first introduced way back in season 3, well before the gouald were defeated OR anubis was introduce(i think they had actually only beaten 1 single gouald by that point). Anubis only came in at season 5, and still the normal gouald weren't defeated yet and infact became stronger.
Anubis and the replicators were then beaten at the same time in season 8 i think it was, along with the jaffa soon going free which left most of the remaining system lords dead/powerless.
But after that yes, the Ori just seemed to kinda pop up. Guess they weren't planned as far in advance, (though they did try to relate them back into previous established content ie. the ancients who were introduced well beforehand).
But this is kinda off topic. XD