IMO the support, offense, defense pattern could work out fine AND fit with which classes need the changes most.
Spy is definitely my pick for next updated class. I'd go:
1. Spy
2. Scout
3. Engie
4. Sniper
5. Soldier
6. Demo
I think people would have a VERY hard time arguing that Sniper, Soldier and Demo need much help. And just to show you I'm not biased - my most played classes are Sniper, Soldier, Demo - in that order.
This has already been covered by me.
http://www.edgegamers.org/forums/showpost.php?p=441173&postcount=14
Klesk, it follows a patten. Support [medic] -> attack [pyro] -> defense [Heavy]. So next is either Spy or Sniper.
.Besides I'm sure its spy because there main way of killing ( backstab) is pretty glitchy and the spies ability to help the team is also a bit dependent on the other team.The spy has to change drastically say if the other team has 0 pyros then if they had 3 pyros.Disguises are great for new people to the game but people that have been playing for a while would spycheck all the time and it again depends whether or not the other team is smart.In the end the only thing you can rely on is that cloak ---> invisable.ROTFLMAO!!!! I can just imagine on the day of the release for the spy on turbine.... 32 cloaked players bumping into each other and not being able to do anything since they are cloaked... !bang