than what was in the concept art?
Either it's not a spear, but a similar polearm type weapon (The way the question is answered implies that might be a possibility.) or they drew concept art for a spear, but it didn't make it into the game, that sort of thing can happen, and that might explain why it look like it was erased in the image in the video, to show that it didn't get put into the game so as not to mislead fans (If that's the reason, it didn't seem to work very well.)
I'm kind of dissappointed to here no spears, at least not now, the way Todd worded it, it sounds like they MIGHT add them in before release, but I'd say it's unwise to count on that. But regardless, I'm not at all surprised to hear no spears, and their absence is unfortunate, but hardly game ruining. Knowing they wouldn't be in Oblivion never stopped me from playing it, and things won't be any different for Skyrim in that regard.