5) Arrow
After the stellar second year which saw Oliver Queen take on Deathstroke, the third season of Arrow was something of a disappointment. Ra’s al Ghul was a pale imitation of his comic book counterpart, and while fans of “Olicity” were no doubt happy, pretty much everyone else was sick of their tedious interactions by the end of the premiere!
So, after all that, why bother watching season four? Well, it appears as if the series will once again head in the right direction as The Arrow finally becomes Green Arrow and a new foe emerges in the form of Captain America: The First Avenger star Neal McDonough as Damien Darhk. Throw in a surprise appearance from Matt Ryan’s John Constantine and what sound like some big episodes setting up the events of upcoming spinoff Legends of Tomorrow, and Arrow could just end up returning to its glory days.