It was confirmed that the new season is called "Outsiders"
Superboy and Megan's home has pictures of Mount Justice and its surroundings on the walls. Mount Justice served as their first Earthly home in season one and two until it was destroyed in "Darkest".
First episode since 2013.
James Arnold Taylor has taken over the role of G. Gordon Godfrey for Tim Curry. In 2012, Tim Curry had a massive stroke. Since then, he has needed to use a wheelchair. Sadly, this left Curry partially paralyzed, and affected his ability to speak.
It is revealed that Jefferson Pierce married the sister of John Stewart, Earth's 3rd Green Lantern. 4th if you count Alan Scott, the Golden Age Green Lantern or 5th, if you count Yalan Gur, a resident of China who was corrupted by the power centuries before Alan Scott.