Yup, lots! I've spent a lot of time going over every Champs Universe book to make sure I didn't miss anybody. There are even new writeups of characters who have only had brief mentions before, like Dr. Ka's granddaddy Dr. Twilight and a few Canadians from Scott's Champions of the North.
While a lot was reprinted from the original SF, a great deal has been added, primarily in the extended description of Aaron's campaign timeline -- where it took off to after the date of the original SF -- and in describing the world, the universe, and the multiverse his games took place in. His campaign was truly vast, diverse, and fascinating.
A few new characters from the setting are added, or given full character sheets and backgrounds where they had only brief synopses before. Artwork is IMO good to great, much of it by original SF artist Denis Loubet. It's all full-color on glossy paper.
(This concept resulted in a very fun plotline in my own game recently, so I thought I would share it.)
Dark Renaissance: For years Takofanes has appeared suddenly and without warning, at seemingly random locations, causing death and destruction for no apparent reason before being driven off by superheroes. However, the Archlich has in fact been working to a plan all along; his rampages have actually been rituals and sacrifices laying the groundwork for his grandest spell ever.
The Undying Lord appears at the PCs' home city. The heroes confront him to try to stop his latest rampage, when suddenly everything around them changes. Their city, the people they know, in fact the whole world has been reshaped into analogues from the long-dead Turakian Age. The heroes quickly learn that they are the only ones who remember the world the way it was - perhaps because they were close to Takofanes when the change occurred. Moreover, the Ravager of Men now rules this new Turakian Earth as he did the original.
Can the heroes undo the spell and restore their familiar world? Will they have to penetrate Takofanes' recreated citadel far to the north, and face the Undying Lord himself at the seat of his power?
(One interesting option would be to change the PCs themselves into their Turakian analogues. For example, the team's gadgeteer could be reshaped as a Dwarf, while the mentalist might find himself in the body of a Migdalar. The GM could elect to let the PCs keep their powers while just changing their appearance and SFX to Turakian equivalents; or he might choose to make them comparable but less powerful Heroic-level characters.)
[Note: Yes, this idea was inspired by Marvel Comics' "Kulan Gath" character. Maybe not original, but IMHO it still works. And it lets you get more use out of your FH sourcebooks.]
