Got a chance to do a little bit of play-testing last night with it on my private server. It's definitely looking interesting... will have to dig up my screenshots of it later.
A few random thoughts:
There isn't a CTF HUD showing up. Was this intentional, or is it just a bug?
I noticed I was able to sticky-jump over the "red doors" at the village to get to the boat area. Don't see anything that I could exploit over there...
There seems to be a little bit of a "lip" on some of the rope bridges, which stop me from walking directly onto them half the time. I often have to make a little hop to go across.
One of the point match-ups has one of the bridges removed since there's a red door on the other side. I noticed that, even though the bridge is gone, you can still walk across/stick stickies in mid-air. Didn't try building a sentry on it, though. That "missing bridge" point looks weird, too, since it looks like you should be able to sticky-jump to the other side, but can't. Maybe leave the bridge visible, but have a gate on the one side (possibly made from bamboo?

) to keep people from walking on it?
The "skull" point seems to be a pain in the butt to assault. Is there supposed to be something up on the "eyes" platform, or is it just a ledge for demos/soldiers to hang on and completely murder attackers?
Swarms of scouts seem to be common-place. Any chance of a little bit of set-up time between rounds, so a engineer has time to at least get a sentry up and running? It doesn't have to be long, maybe 10 to 15 seconds.