You have to remember that Liam Neeson already played Zeus in Clash of the Titans (2010) and its sequel Wrath of the Titans (2012), so who better than him to give life to the most powerful God of the Greek pantheon in the Wonder Woman 3 movie.
Patty Jenkins will make the third installment of Wonder Woman after finishing her two new projects which are Cleopatra (2022) and Star Wars: Rogue Squadron (2023). For this new installment of the great DC Comics heroine, itis speculated that they will use more Greek gods and for this, they will need great actors like Liam Neeson.
The new information comes from the same sources that matched that Luke Skywalker would appear in the Mandalorian of Disney + long before it premiered last episode of the second season and that Diana would have his armor Golden Eagle in Wonder Woman 1984, now they say Zeus will be in the third installment. This is why the film studio is looking for a TOP Hollywood name for the role, and Liam Neeson is the best candidate. You also know what it is to play a DC Comics character since he gave life to Ducard in Batman Begins (2005) of Christopher Nolan.
What happened to the Gods?
Thousands of years ago, Zeus created mankind in his image and likeness. They were good and fair, but Ares, the God of War, was jealous of his father’s creation. So he inflicted hatred and corrupted them. The gods created the Amazons to bring love and peace, but that did not last and humanity attacked them, so the Gods had to defend them, something that Ares took advantage of to kill them all except Zeus.
Since they faced each other and the father hit his son so hard that he made him disappear. Although he was always afraid that he would return. That is why with his last breath he created the island of Themiscira, where the Amazons lived in peace. But he gave them one last gift, a weapon capable of killing gods. In the Wonder Woman movie, it seems that this weapon is the sword, but it is Diana Prince herself.
So they imply that Zeus has died, although he could only be injured and that is how we would see it with the appearance of Liam Nesson. Another option would be for it to appear in scenes from the past.