[Pbuckley]

If you do less pretending on how the Ascended are basically god's a good way to mix up the Ascended Ori schism is to have them differ in how much they want to meddle in the lives of mortals. Ori are tyrants, and Ascended are not. Though I suppose the Ori's NEED for worship might be enough to accomplish this. Though to note that would still lead to more or less the same result... The very active, yet tyrannical Ori, Vs. the distant yet freedom respecting Ascended.

Honestly, I don't think you need to make Goa'uld into demons. They are just another race, one that happens to tend towards villainy, and is likely more competent at magic (thus their ability to pretend at godhood). One could even play as Tok'ra with little issue.