The comics didn't totally ruin what we knew about the games. If anything, they just told the same story with a few frills. The only bad thing is the story was just about the same. Things could've been fleshed out better(considering IGA said the comic was a good medium to tell MORE about what they couldn't in games). There was also a lot of pointless characters in the comic.
But yeah, they show Soleiyu. He's first shown in Chrisopher's dream(which foreshadows Belmont's Revenge) where Soleiyu is corrupted by Dracula.
Still, considering Christopher is the LEGENDARY Belmont, it would be all more sweet to have a Chronicles title about him!!