The Flash Season 3 Finale: 8 Big Questions We're Asking After 'Finish Line'

8. Is Harry Wells Sticking Around On Earth-1?

Finish Line opens with the shocking - well, shocking if you had missed the obvious clues hidden in the previous episode - twist that H.R. Wells had been killed in Iris' place.

This leaves a Wells-sized hole in Team Flash... which is handily quickly filled with their old pal Harrison 'Harry' Wells from Earth-2. At the end of the finale, Barry asks Harry if he can stay on this Earth for a while, and Harry obliges.

So does this mean that Harry will return to be the resident Wells for season four? So far, Wellses have been treated like Defence Against The Dark Arts teachers in Harry Potter and we have got a different one every year. However, fans generally seem to love Harry's version the most, so it could be a good idea to buck the trend and stick with him next year.

Likewise, Harry shares a scene in this episode with H.R.'s lady love Tracy Brand and inspires her with a patented Team Flash pep talk. Will Harry and Tracy develop a romance of their own next season? It could be interesting to see, though it might be a bit weird for Tracy to hook up with her dead boyfriend's doppelgänger.