20 Big Questions About 2017's Most Hotly Anticipated TV Shows

4. Who Is Sigourney Weaver's Villain? - The Defenders

Once Iron Fist has arrived on our screens in March, it's full steam ahead to The Defenders - likely to arrive sometime in summer.

The eight-part miniseries is still shrouded in a lot of secrecy - though we did recently get a few new details - one of which is the true identity of Sigourney Weaver's villain.

The actor is undoubtedly an excellent addition, but so far all we know is that her character is called Alexandra (no surname as yet), and that she's a major threat - as you'd well imagine, given she needs to be powerful enough to unite Iron Fist, Jessica Jones, Luke Cage, and Daredevil.

One plausible theory is that she's playing a female version of Alexander Bont, the first Kingpin of Hell's Kitchen, although there is always the chance she's playing a completely new character.