[evanisthat!]

How about a combination of the best of the previous games, a big ramp in the middle of the field like stack attack. Big goals that robots shoot balls into, but only from on top of the ramp, and the goals can be stacked on like in 2004 with the 2X ball. You could cover the other alliance's goal so they couldn't score unless they freed the ball. This would cause a ton of action on the ramp, and a good amount of strategy and manipulator innovation.

OR

A big see-saw in the middle, that is also a ramp, and is perpendicular to the long side of the field. It would have 2 hanging goals, one on each end, and the object would be to fill the goals with game pieces to get the ramp to tilt in your favor. Other robots could try and balance it by getting on the other side of the ramp, and you could shoot or dumb the game pieces (probably heavy balls) from anywhere on the field into your goal. Tons of strategy, innovation, and "king of the hill" style fights. There would also be a limited number of game pieces to be scored, thus once the goals are full, the game dynamic changes entirely.
Who knows, lets do it all underwater too!

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