We’ve seen the Medic update, the Pyro update and we’ll be seeing the Heavy receive its class update next. Not many details so far, but if you’re interested, keep an eye on their dedicated Heavy Update page. Valve will be drip feeding info to everyone for the rest of the next few days.
Expect the update to debut shortly after.
As for the class updates for the console platforms? Ha! I wouldn’t hold my breath. Especially for free.”free update”.