Thanks Simon, these rules are all great additions to the game.
Group moves is very welcome as a means to try to keep some lines together.
I much prefer the rout test rule over demoralization. It is simple to employ, one does not have to keep track of victory points lost, and it is more realistic.
Combining light troops offers players interesting new tactical options. Many rules sets have difficulty classing "beefier" lights, and I think this rule captures that well.
Great leaders is a must for modeling leaders like Alexander the Great.
Elephant screen and army standards offer interesting choices. The elephant screen rule appears complicated, but you were apparently detailed in your explanation so as to prevent any confusion, and the rule itself is fairly simple.
I have a couple of comments about lances. I like the light lance rule. Besides the Normans, generally, which armies do you envision using light lances? For example, would the Equites Romani fall under this rule? As for the bonus to-hit card for lances and light lances, I suggest that such rule does not apply when charging pikemen frontally. It seems like the long lances of the pikemen would nullify the effect of the cavalry charge with the lance. Let me know what you think.