The reason other games don't have bilateral movement is because all connectors are pre-reqs. Which means Daedric and Glass would both be required for Dragon.

This seems unreasonable.

Truth, and I hope so. That could also explain why the Light Armor side has one less perk than the Heavy Armor. If both armor classes are expected to get Daedric weapons/dragon armor, they would end up spending the same amount of perks. Hrm.

If that is true and both heavy and light have to get Daedric first, then people have to redo their perk choices.

That particular sword has also been quoted multiple times as a Daedric Sword. Google searches of "Daedric Sword" also show a pic of the same sword (different angle, but both are two-pronged longswords).

I've raked these forums and multiple search engines with nothing solid on Dragon weaponry. Interviews with devs had them raving about the armor without mentioning weapons at all (even when weaps were part of the question). Unless we get additional confirmation, looks like we'll have to wait for post-release info.