So I've made 2 very crude images here, to help me describe ideas for new maps.
1st one. The base for each team is the ship/hanger from KOTH, floating above a world of clouds (yes I know, similar to bespin) it's doors have been closed up except for one exit port. Upon exiting the base, you are falling downwards. Similar mechanics to PL except there is nowhere to land but green jump pads, or the cap. This means all battle either takes place in the air or on the cap points themselves. You navigate around using the green jump pads, and if you fall off the cap and don't make it to a jump pad, you are bounced back upwards towards the nearest jump pad or cap.
This would make for a chaotic and fun battle match.
Ok, second map idea, a gravity sphere floating in space.
There would be spike-like rods coming out of it for snipers, and gravity otherwise would hold you to the ball. At two points in the sphere, there would be green glowing entrance ports, which would open up to the inside of the sphere, where your boots are still gravitating to the side of the ball, so you could run around it like a giant hamster ball with jump pads, small walls and a central or multiple cap points.
As with the first idea, gravity aspects from PL and space station are necessary components.