I need some opinions in this. Roughly, I'll start by stating my views in the Ideal world and the dragon god's presents in other dimensions.
At the end of CC, the timeline replays itself as if the Time-Devouer never existed after a certain point. No TD equals no flame(or at least power for it) Just long enough for El Nido to remind as is until before the time-split. Meaning Schala made it so Serge can be who he is, and not changing too much.
And one the subject of dragons and Harle, is that if a being is powerful enough, they're not soaffect by edits or splits in history. Unleast someone can correct me, there was no Harle in Home World just like they was no Fire Dragon, White dragon or Earth dragon. Most likely, the connection to TD and Schala made them immune to being 'copied' like the two Leena's or two Masamune's.
Know to my point of interest. If the TD dies, the dragon-gods in earth would probably die too. Just to say, if Schala still has/had some powers from the TD, would she exists keep them alive?
Sorry if this seems too stupid, or if it has been covered before. I have my own Chrono project and it came up.