The explosion on Lian Yu in the season 5 finale of Arrow created an entirely new mess of problems for Oliver and Team Arrow.
Played by Charlotte Ross, Felicity Smoak’s mother is coming to back to Star City in a season 6 episode of Arrow.
The season puts the focus on family as Oliver deals with his relationship with his son, as well as his relationships with each member of Team Arrow.
As Donna developed a stronger presence on Arrow, the character developed a romantic relationship with Quentin Lance that ended off-screen between season 4 and season 5.