It took 30 years for someone to work up a prequel to John Carpenter's The Thing, but the wait was worth it. They took the time and effort to go over the intricate details of the scenes involving the ruins of Thull Station. They listened to the fans and managed to work in some of the more logical fan theories regarding some aspects of Thing abilities. They were respectful to the mythology of the origional and made a wonderful companion piece to it. So, don't give up on a Season 3 of SatAM. All it really needs is some people willing to do some hard work and who will respect what is loved about SatAM, and perhaps change a few things that aren't so loved, in a manner that's not going to break anything major.
An alternative idea that comes to mind is doing something akin to what they did with Voltron Force and the 2008 Knight Rider series: Make a new show, but make it a continuation of the continuity/mythology of the original. This is a good way to bypass the problems of a remake/reboot, while still somewhat pandering to that crowd. I really don't think that the idea of completely starting over is a good idea. You have to re-hash plots and screw around with what people liked, which treads on dangerous ground. If someone were to make a remake/reboot of SatAM, it wouldn't have the same tone, because they'd be pandering to today's kids. And that means a lot more crude humor and idiocy and generally awful writing and plots. I dare you to find an honest-to-God Dukes Of Hazzard fan who doesn't want to take the people who made the remake/reboot movie and gut-shoot them and let them bleed out out in the woods. That's what you're risking when you support a "reboot".
There's good reboots, and there are bad reboots. And sometimes, there are ones in between. It mostly depends on who is directing it and what direction they have in mind.
Regarding SatAM, as good/unique as it was, times have changed since its last airing and the series doesn't hold-up too well by today's standards. Since most fans are familiar with the games currently, it makes sense to reflect that depiction, but give it a different direction. Like keep the current designs and modern characters, but up the ante by adding more drama and character development. Heck, why not reintroduce the older characters so that younger/newer audiences can get to know them?
To put it simply: why hold your breath when you can inhale a new one? It's the same pair of lungs as before; but with fresher air pumping through them.
As far as a continuation goes, I'm perfectly fine with the Se3son series. As for a spiritual successor, the Archie comics seem to have that covered (especially now).
