Yeah I don't think the combat will ever really improve in complexity or fluidity, I just don't think the game could handle it performance and stability wise, or they would have done it already. Being a Lancer might be fun, but it just seemed a bit boring to me. I would probably enjoy archery more personally.
That being said not a single experienced player has ever had anything good to say about Longbow though, only bad. You have to spend so many points in Str and Agi just to use it that you'll suffer elsewhere ( mainly in Constitution and Willpower I guess, for more health and more carry weight ). Everyone has said the Composite Bow is best as it requires less Str and Agi, still hits as hard as a Longbow, but has the range of the Shortbow. Someone pointed out you probably wouldn't hit much at the ranges that Longbow offers anyway, so it has far more cons than pros.