I think CA should really use WH3 as an opportunity to revisit the diplomacy lines and battle-cries of the older races. It kinda sucks and breaks the immersion when the old world races don't recognize the race of their new world rivals when they come face to face with them.
But I think it's also the best and only opportunity left to gather all the fantastic voice actors who've already worked with CA on both games so they can record battle dialogues for the legendary characters of Warhammer. Basically Battle Banter like in Three Kingdoms.
Yes, it might be daunting cause of the multitude of unique characters, but it would just add tremendous flavour to real time battles and add more narrative moments. And if CA take their time with this instalment I'm sure they can make it happen.
With Lizardmen and Beastmen it should be a bit easier since most other races can't understand them, so they could react all puzzled, dissmisive or surprised when they hear them speak. The only person I can see interacting with these bestial species is Wulfrik the Wanderer.
The thought of having Karl Franz and Archaon throw verbal blows at each other while they smash their weapons against another just sends chills down my spine. Hearing the desperation in Karl Franz's voice as Archaon boasts about how he will wreck the entire planet.
What do you folks think?