Will the Army list be changed by Impetus 2

I am not so worried about the commanders and points but actual units.  Are the number of troops and the types of troops changing a lot, a little, or not at all?

the project is to release Impetus 2 to work with the existing lists. Some clarification and possibly few amendments will be released.

With no rush all lists will be revised and many more added (to have about the same armies you can find in BI2). The idea is to release simple books of lists, eg Ancient Armies, Medieval Armies etc.