'Arrow' fall finale post mortem: Felicity and Oliver, Roy's transformation and Slade's revenge
Bye-bye to Barry?
At the end of "Three Ghosts," Barry Allen ( Grant Gustin) headed home to Central City and his fate as the Flash. "Arrow" had originally planned that the character would return to "Arrow" during episode 20 of the current season, but now there's a separate pilot.
So does that mean we've heard the last from Barry?
Nope. While episode 20 will be just normal "Arrow," no one is going to forget Barry. "You definitely hear, in the back part of the year, what happened to Barry on the periphery. Kind of like how you're hearing about Star Labs now," Berlanti explained.
The future of Olicity
One of the main effects that came from Felicity ( Emily Bett Rickards) liking Barry was that she was able to somewhat clarify what her feelings were toward Oliver ( Stephen Amell). That's not going to disappear now that Barry has gone home to Central City.
According to Berlanti, "I think at the end of this episode -- and certainly at the end of episode 10 -- the fallout from episode 9 carries out into the next episodes, as far as the Felicity and Oliver relationship is concerned. Barry has had a profound effect on them, and that will carry over."
Welcome back Tommy!
No one is ever gone for good on "Arrow." This was made abundantly clear when Tommy Merlyn ( Colin Donnell) returned to the show as a figment of Oliver's tortured imagination. It turns out that Tommy wasn't the original thought for Oliver's third "ghost." He was instead simply a perfect choice.
"We were talking about 'Who could he see?' We were talking about his dad, and then we were like, 'Oh no!' We both said it at the same time that it should be Tommy," Kreisberg said of the producers' decision. "Colin is such a friend of the show and obviously was such a part of the success of Season 1 -- and so much of this season is based around this character and his loss, what a hole he left in the show. It really fit with this season's arc with Oliver going from vigilante and hero."
Is Roy going to turn bad?
Roy Harper ended the fall of Season 2 full of mirakuru and justifiably confused about what just went down. Does the injection mean that Roy is doomed to a life of evil? Not if Oliver has anything to say about it. "Oliver basically makes it his mission not to let Roy go down the Slade path," Kreisberg explained.
There remains the question of whether or not Oliver can succeed at this. The very nature of mirakuru makes saving Roy into a bit of an uphill battle. As Kreisberg put it, "We see what Roy's potential is, to go down that dark path too. One of the things you'll find out as we go along: It's a deep-seated anger inside of you that lets you survive the **mirakuru transformation."
Speaking of evil paths ...
Audiences don't yet know exactly what turned Oliver and Slade Wilson ( Manu Bennett) from great friends to mortal enemies. But that is coming. "He blames Oliver for what happens [to Shado]," said Kreisberg. "And what's interesting for our character is Oliver blames himself too."
"Things don't get better between them on the island," Berlanti added ominously.
"Arrow" will return with new episodes Wednesday, Jan. 15 at 8 p.m. on The CW.