Ironman Mode - this has now been added to the game. This should hopefully add a new challenge for people!
Combat View - a third view has been added: over-the-shoulder. This allows players to get right into the arena with their gladiators. This is more useful for spectating, but it can also be used for controlling gladiators as well.
Combat Turning - gladiators can now spend an action point to turn a certain number of degrees in their hex. This is done by right-clicking on the grid adjacent to the next spot you wish your gladiator to turn.