The execution of this is going to be a bit tricky, won't it? I mean, at least the Star Trek reboot had a time traveling angle to explain the changes, more or less, which was actually more than I expected when I first heard the idea of a reboot. Full props for actually working your reboot into the storyline, rather than just flipping an imaginary switch. Then there are reboots, like the Hulk movies, where they very lightly touch upon changes, and make it clear they don't necessarily hold themselves to the previous movies, but at least don't set themselves in the same time frame as the predecessor, so with heavy squinting you could maybe kind of see all these different things happening to the same guy.
It sounds like this particular approach might be more focused on that OTHER kind of reboot, where they just toss out everything established for no particular reason other than they want to toss out everything established. The Amazing Spiderman, basically, where not only were they rebooting Raimi's version, but they just haaaaad to make their first movie yet another origin telling. Even speaking as someone who doesn't necessarily mind the new movie series, this kind of ham fisted reboot approach is just clumsy. :/
Especially when I consider exactly how much of the Stargate mythology that I so love came from the television show, and not the movie. I might be wrong, but wasn't Ra some creepy alien faced dude underneath the pretty boy exterior, and the whole concept of the Goa'uld being parasitic slugs came from the television show?