In an interview with Digital Spy, Greg Berlanti (executive producer of Arrow and Flash) lets us know that he has a plan B should plan A for Grant Gustin's FLASH fail to grab an audience or get picked up this fall.
"Fingers crossed we don't screw it up and he gets his own show!" he joked. "If he didn't, I don't think we would ever want to let Grant go. He's too valuable. That would be our hope, I think - no matter what, to keep Barry part of the universe."
So Barry will be returning to Starling City as a series regular on Arrow if Flash doesn't do well. He also hints that Barry and Felicity's chemistry will be explored in great detail and that Felicity will make frequent guest appearances on the Flash TV show. With the recent revival of Sara and Oliver's romance, Olicity has taken a back seat in Arrow's remaining season 2. Thus, opening up the opportunity for Felicity to move to central city for a brief arc.
Who would you like to see Felicity be with? Or should she focus on her work and become the self-made tech-billionaire she is destined to be?