I dunno if a sequel is what we need, I think we need a prequel to find out why Billy wanted to be evil in the first place.  Why not become good (besides the fact that evil is so much more fun)?

Hmmm…

Actually, as someone who has followed Joss for a while now, what I consider the obvious sequel would have to involve a juxtaposition betweenthe good captain and Doctor Horrible.  I don't mean to second guess Joss, but for my thoughts, Dr horrible would need to be forced into a moral choice.  When the good Captain starts to actually create social change as a villain (or potentially an outlaw hero similar to the Punisher?) he will be forced to decide between vengeance (and his loyalty to the league and his new found power) and his core ideals.  Course it has also been my experience tha Joss seems to always put one more twist on things than I come up with ahead of time, so you never know.

I do want a sequel to this, at first it was because the ending didn't sit well with me. I grew up with happy endings and such, and have since grown into preferring tragic endings. But with this I just sort of saw it with Dr. Horrible becoming real, and still getting Penny.

But then, thinking it over and watching it (two more times >.>), I realized that Penny did have to die. But she does need to make a return somehow. But not through Dr. Horrible, but maybe another superhero? And she becomes his true nemesis or something. Seeing as she does represent what heroes should be. Morally righteous, good, just and selfless. Willing to sacrifice themselves for the good of the many. She has given her life toward helping those who need it, more literally in her death (irony!). While Dr. Horrible/Billy, has gone down the more radical, evil, path. Thinking to rebuild from the ashes. They conflicted in ideals when they were just Billy and Penny. Now as Dr. Horrible and (insert hero name here), the conflicts are even greater.

when i first saw it, right before billy said his last two lines, i was convinced that some sort of happy ending would be acheived through a time travel ray.

yes, i know, it was silly. i just kept thinking "the bar isn't at the end quite yet!", but then it ended.

it would be amazingly lame if they did that and did it wrong wrong, but if they made a sequel, they'd probably have to bring penny back. mr whedon has done it before (buffy died twice, remember?), and he might yet do it again.

honestly, i really hope we don't get any sort of prequel. we have the motivation there, he says it in the opening vlog entry, what we don't know is what comes next.