I think I edited the post with that as a quick afterthought. I'm on one of my SD3 binges; it comes and goes, though this time it's incredibly strong. Hah, and I've never even played the game all the way through! I just can't get over the graphics.
Definitely consider submitting any completed rips you have. It might just help someone in need. The only thing that's a bit difficult about submitting at the Spriters' Resource is making the icons, though for the most part all you have to do is re-copy a frame and paste it right on their template. Portraits are more difficult at times because the character faces might need to be separated from backgrounds so the icon doesn't look shoddy.
To return a bit closer to MagilsugaM's original topic, would the Compendium host sprite sheet extensions as fan art? Or where could that sort of thing go? It'd be awesome to see additional frames for various Chrono Trigger characters.