As though you needed any more signs of summer being truly over, here’s another one: Everett Arena has transitioned from its summer schedule to its winter one, which means the ice is back. Gone till next summer are the antique shows, train shows and roller derby competitions, replaced by loads of hockey games and public skating. We went over there last week to see what was happening, and people were already lacing up the skates – the ice skates, that is – and getting at it.