This isn't a big issue by any means, but since there aren't many voice lines, a lot of them end up getting a little grating (Die You Bastard!). Recording the lines in period and culture-appropriate languages (Vulgar Latin in the Empire, Old English in Battania, Frankish in Vlandia, etc) would avoid that fatigue, would sound really cool, AND would make localization easier because lines won't need to be recorded for every different major language! They just need to be done once, and THAT would mean being able to have a lot more voice lines total.
