We have added many legions to the mod(27 new legions,forom Macedonica to Italica),both repubblican and imperial.republican legions are all the same,but when you switch to imperial ones,you will get new Legions type,like eastern ones,armed with more hot climates adapting armours and Gallic one.
Here there are the models(by Ferres):
Consider that numbers and names have been historically assigned.
Also we have set them to use different equipments by the position they were historically.This means that Legio VIII Hispana for example will have an equipment suited for cold climates in the imperial form,as it was camped in Britain in those times.This will influence the player to sent them to regions near the historical loccation.