Considering that the theme of Season 6 will be family, we can bet that the flashbacks will feature Slade’s son as well.
It certainly sounds like Slade will get a fair amount of screen time; not every side character on Arrow can boast being the focus of a two-parter.
Maybe we’ll get a look at the mother-to-be of Grant Wilson, who may or may not have a key part to play in the future of Star City.
It’s not likely that Manu Bennett became a regular and Slade Wilson will be the next member of Team Arrow — although he at least would be qualified to hit the streets to fight crime in Star City — but he’ll still be important to the show.