1. Olicity
Firstly, I'll start off with a comment on how good the chemistry was between Amell's Green Arrow and Emily Bett Rickard's Felicity, a character purely made up in the show. Felicity's use as the comical one, playing off Oliver's extremely serious attitude and poor lies made for great interaction and their relationship, is loved by fans so much that the two have already got a name mashed monicker in "Olicity" which fans of the series use when referencing the relationship between Oliver and Felicity. The relationship between the two, and especially Bett-Rickards performance as the brilliant, funny and smart Felicity Smoak really added something to the show. As the first season progressed, Felicity went from being sometime assistant to Oliver and later Walter, to being involved with Oliver and Diggle full time in their work as the vigilante. Then Felicity was called to stand up again when Diggle had quit on them, forcing her into the field with great to watch results. The writers had found a way to create a character in Felicity that is needed in great shows, a characters that is incredibly quotable, even out of the circumstances of the episode. The second season should not only continue Felicity's growing role, but some fans are hoping that a relationship develops between her and Oliver, due to the sheer amount of chemistry between the two actors and characters that clearly exist. However, only time will tell whether or not the Arrow writers are making this come in the second season, or whether it is just the figment of fan imagination. Either way, the continued development of "Olicity" is something to look forward to in season 2.