Good findings, Snowball! As for SA maps for TC, I doubt it. I think TC_Marshes is more of a similarly-themed map, rather than the same one. But then again, mech hangars could be capturable, so you could be right.
That could be true, but I was thinking that it could be an expansion of the Marshes we currently play on in SA. The devs did say that they had to scale down some maps from what was originally planned (Clearcut pops into my mind), so it could be that the TC versions of the maps are the "full-scale" versions, and that SA-Marshes could be a slightly modified area on the "full-scale" TC-Marshes.
Also, I spotted an FFA-GladiatorPit. Pretty self-explanatory there.
Wow... nice list! Hehehe. Though I have no idea how it's related to the map itself. 
Thanks! Google did most of the work though. As for map ideas, I can gather quite a few (most of this will be completely random speculation). We'll ignore definition 3 for now, as I doubt that has any relevance.
Looking at definition 1, it could be a:
- "Temple" or "Greek" themed map: Greece and Greek references, duh.
- "Peninsula" or "Mediterranean" themed map: Enkelados possibly spent his time in Pallene, a peninsular region in Greece that borders the Mediterranean sea.
- "Volcanic" map: it's said the Enkelados was slain and buried under Mt. Etna on Sicily, an active volcano.
Definition 2 brings up these possibilities (running off a space theme):
- A space-themed map like Extremity which takes place on the surface of Enceladus itself.
- Possibly an orbital or surface space station, or perhaps a large ship.
I think it's interesting to note that the moon Enceladus is actually quite small; it's one seventh the size of our moon, its diameter is smaller than the length of the British Isles, and its surface area is slightly larger than Texas. Isn't random speculation fun?
nooo these littel tid bits make my anticipation grow even more!
No kidding. Thank god the mod is fun as-is or I'd probably go mad from waiting.