Right now, we have:
Scout
Heavy
Spy
Sniper
Soldier
Medic
Demoman
Pyro
Engineer
If we think of a new class, it needs to cover an angle that's not been touched before.... Maybe... the Aviator? Chase people around with a propeller, a mountable Tommygun, and a jetpack? Also with greater air-time when jumping?
Scout
Heavy
Spy
Sniper
Soldier
Medic
Demoman
Pyro
Engineer
If we think of a new class, it needs to cover an angle that's not been touched before.... Maybe... the Aviator? Chase people around with a propeller, a mountable Tommygun, and a jetpack? Also with greater air-time when jumping?