i dont know if this has been asked, or answered....or if it can be answered....

does the new DLC correct the left hand sword coming from no where when you pull out your weapons?

I hope so it really annoys me sometimes, but I doubt it will

Sounds like something a patch would do. Not a DLC.

New animations and character models would be required imo. A patch wouldnt really cover it. You would need a scabard and weapon point on the left hip at a different angle and placement so that both scabards dont collide when moving. You would also need i think a new animation to show the weapon getting sheathed rather than vanishing half way there. Thats actually a fair bit of work, a DLC would be the best bet for it to be incorporated.

Of course I could be way off here in whats actually required in the way of work.

My off-hand dagger has recently appeared on my dual-wielding character, no idea why.