Here's the thing, there's a certain cadence to the majority of the Star Wars titles. Except for episode 1 and 4, all of the subtitles have been 4 words long, 5 syllables.

It's difficult to come up with a title for Episode IV which feels appropriate. there are a lot of sources to draw from, you could call it The Son of the Suns in referrence to the Journal of the Whills, You could go with one of the Radio Drama episode titles like A wind to shake the stars, but neither of those really feel right to me. I think Son of the Suns is to esoteric, and wind just kinda lame.

It might be easier once we know what episode III is going to be called.

here's one off the top of my head

Flame of Rebellion (or Flame of the Rebellion, or The Flame of Rebellion, or The Flame of the Rebellion. sensing a theme here?)