kind of knew Nora was going to dissapear due to the timeline being reset so not as affected by the erasure. not to mention that there is a strong possibility of her reappearing like thawne as she has also accessed the negative speed force. I felt that thawne calling Nora runner was a callback to Henry calling barry slugger. it's lucky that thawne doesn't have any progeny considering what he has done to his 'surrogate children'. seems it was the season of 'deaths' what with Felicity dying in Arrow and now Nora. looks like Cisco not returning for the next season expect for cameos is a strong possibility. maybe Susan 'Dearborn' will take his place or at least it looks like it. well as thawne said to Barry "see you in the next crisis flash".