About servers, balance and same technical questions - We're gonna take this step by step at a time.
We have a lot of absolutely unique global ideas, including some rebalance ideas (for public casual gameplay, separate with pro one, which increases the interest and involvement of simple players on public servers, or on huge events). But due to an incomprehensible situation with modding tools and release dates, we cannot give specific examples. The only thing I can say with confidence - there will be interesting changes to the mechanics of sieges (comparing with NW).
Now it's better to do what modding tools allow - models, textures, game locations, sounds and noises, this is a huge layer of work. If we start doing the technical part now, it will take several times longer than using modding tools and in the future it will make it difficult to improve and patch the project.