I don't know how far into the filming of the second season the crew was informed that the show had me cancelled, but what really surprised me was that the final episodes didn't attempt to answer any of the qiestions raised during the series, or wrap up any of the storylines.

I'm fine with some things never being answered. Like the origin of the drones - I feel they're more menacing when we're unsure of their exact origins. The biggest mistake Stargate SG-1 made regarding the replicators was eventually giving them a lame origin story. Likewise, while the writers of Star Trek Voyager have gotten a lot of criticism regarding how they handled the Borg, at least they never revealed the Borg's origin, and that keeps them a little mysterious and menacing.

Likewise, I'm fine with never seeing the creators of that artificial planet back in season one. I loved how they kept that mysterious - the thought that there are beings out there so advanced that they can create an entire planet is majestic. But when the people who stayed on the planet were suddenly resurrected and brought back to the Destiny to die all over again - that's the kind of thing that demands an answer, and we never got it. Also: what were the blue aliens after? What's going to happen with Chloe's mutations? (It might be that the blue aliens cured her, but I'm not sure anymore.) When is the Lucian alliance going to attack Earth? What actually happened with TJ's baby? What was the mysterious signal the Destiny was following? Did Eli ever manage to fix that final stasis pod? Is his plan going to work? When will these people come out of stasis? And of course there's also a huge loose end from Stargate Atlantis still dangling around: are the Wraith still preying on the people of the Pegasus galaxy? Are they still searching for Earth's location?

This is the kind of cliffhanger that begs for a resolution involving the crew awakening a hundred or a thousand years in the future. Instead, we will never know.