Were such animations ever made for Oblivion? I never saw such.
However completely new weapon holding, firing and reloading animations were created for New Vegas, so it certainly is possible.
They were easy to miss under the deluge of T&A mods. CCAO or MAO basically worked to give them unique animations. Still, I'd much prefer them as their own shindig.
As to the original topic, yay, when the time comes that I can, I will enjoy pulling this mod apart to give me spears with no other additions. It's precisely why I'm waiting till the CK comes out to consider purchasing Skyrim.