Quote Originally Posted by Furious Mental
Well a developer said in TWC: 'Just they way they're deployed. Square is ingame, and line and column are just a matter of unit depth and width'

The way I interpret that comment is that there is no specific column or line formation. Frankly I find that quite disappointing because I very much doubt that they will have programmed a deeper formation to have many of the advantages of a dense column, to whit:
- It is very reassuring to be in a big group;
- It moves and manouevres much faster;
- It gets much more momentum behind it when charging;
- It is scary to have it charge at you;
I don't see why they wouldn't do this, it seems to me it would be easy enough to program a unit to have all these advantages (+morale, +charge bonus etc) when the formation is more than a certain number of men deep.

I'd be very surprised if a deep formation conferred no special advantages, it has in previous titles.