We could really use various ice spawn times as well as different shapes and sizes like small to medium size ice that popped up around the field (25-75 points) Instead of it being so one dimensional.
I don't know about adding another ramp to the other side. Some alliances still do drop down and dive bomb from the cliff and run out the tunnel, but most teams have sharper senses to see that play these days.
It could even cause a clever alliance to pinch not the team without ice, but the alliance 'with' the ice, allowing them to gain 1.5 worth of large ice.