I've always wondered that too, Ana!
I think they probably had a backup list just in case.
Unfortunately, I was unable to watch all of that 30-minute special "A Storm Named Winter" but did see a little tidbit where a Latin high school class created four new name lists. Why a
Latin class would be doing this is beyond me.
To be honest, I am not really sure if that was just for fun or if TWC was seriously considering using the new names the class came up with. But I personally thought it was a serious effort, and if so, then it looks like TWC may continue naming winter storms in the future.
Judging by some posts on TWC's Facebook page, I know quite a few people dislike TWC naming winter storms. But, on the other hand, others don't seem to mind it. And, especially after "Nemo," a lot of other companies and stations seemed to pick up the naming (for example, I heard a reporter on ESPN mention the name "Nemo"). So TWC will have to consider quite a lot in deciding whether to name winter storms in the future.
Like I said, I was unable to catch that special on the naming of winter storms, so it's possible that what I just said and more was covered in that special. Let me know what I missed for those of you who saw it.