If they were to add more Lycan forms, i would assume since its the same disease, but coming from a different animal you could still be affected by it?
I think it would also be better if we had lunar transformations, that way you never know which lycan form your going to turn into, which would make it all the more exciting, not knowing wether you will be tearing enemies apart as a wolf, or knocking hordes of enemies over as a bear, taking to the skies as a vulture or preying from the water as a crocodile form etc...
What do you guys think about it?

not a man. If bethesda put werecreatures into skyrim it would be for either adding a new creature or to have a new way to contract the lycanthropy strand. Now if we get to go to morrowind or Cyrodiil again then the were creatures are possible because Skyrim only has werewolves and werebears in lore.

time to play Morrowind 