The Flash Season 3: 9 Big Questions We're Asking After 'Magenta' 

9. How Long Will Jesse And Harry Stick Around For?

As mentioned, the strongest part of this episode was the return of Tom Cavanagh as Earth-2's Harry Wells. His presence was definitely missed in the first two episodes, and his return immediately elevates the show.

Although he comes to Earth-1 with Jesse because of her speedster powers, the pair are (thankfully) sticking around a while longer.

Will this be another full season gig, or are they going to be back on Earth-2 after a few episodes? There's surely a gap in Team Flash for Wells, while Jesse is a speedster now, so hopefully they'll be around for much longer.