"Arrow" season 4 premiere's biggest highlight is probably the return of Oliver Queen (Stephen Amell) to Starling City.
This includes why, how, and what changes he had while he was away with Felicity Smoak (Emily Bett Rickards).
There were also reports that the pilot episode of the third season will feature flashbacks to the time when Ollie hasn't returned to Starling City.
It might not only be flashbacks that will return in "Arrow" season 4. A product of Oliver's careless teenage days could also haunt him this new season.
Last year in a crossover episode with "The Flash", Oliver met his college ex-girlfriend Sandra to whom she fathered a boy. There was no little boy beside Sandra when he met Oliver but the scene ended with her talking to her son on the phone.
Talking to reporters during the San Diego Comic-Con, Amell confirmed there is a possibility Oliver will somehow find out about his son.
"Me personally being a dad, I would love to see how Oliver interacts with having a kid," Stephen Amell said as reported by Comicbook.com.
"Now obviously, it would be a different experience from that experience, but I think that that storyline deserves further attention. One of the big tenets of Greg Berlanti is you don't introduce something to the audience and you don't tease it if you are not going to follow through with it in some way, shape or form. So I think it's a safe bet that Oliver will find out about his child at some point."
Before this statement form Amell, Greg Berlanti confirmed that "it's a safe bet that Oliver will find out about his child [in Season Four]."
Reports revealed "Arrow" season 4 will see Oliver having undergone changes.
If Connor Hawke does appear in the show, then things will be extremely different for the Emerald Archer, as a vigilante and as a person.
"Arrow" season 4 premiere will air on October 7.
