Replying to iscore film - although VSL never seems to really let anyone know what is coming next until it's done, I venture a speculative guess that divisi strings with a twist is well on the way and probably nearly here. Give it a few months. Again, just a guess.
I have to disagree with previous post about harmonisation intelligence - I think that is an excellent feature especially as a massive time saver with dimension brass (and other dimension libraries to come). First time I tried it out with DB, I was like, oh yes this is an enormous time saver. Also VSL does things with long term vision and engineers things to last. Some of the features may seem a bit trite to you now but I expect they are there for a reason and will be more obvious once future libraries are released. These guys are Austrians remember. They know what they are doing ;) They are always building the platform. Other things I agree with on though, more libraries, more articulations ;) and more pianissimo, this is something I also have thought of - but having said that, have you played around with using the dynamics and expression sliders and even a bit of the filter? You can use those in combination to greatly soften pianissimo samples both in tone and dynamic effect - in fact it goes all the way to silence.
The biggest developments for me besides the divisi / dimension type libraries has got to be a modulated hybrid MIR. I don't mean hybrid like a convolution stage added on to an algorithm stage, I mean a modelled reverb drawn from a static convolution captured from a real room, but that breathes like an algorithm simulating a real room. In other words, there is no convolution except that it is the starting point, for direct, SR and tail... That has to be the holy grail right now... instrument placement without the (for me) dreaded static convolution effect. Although I think the Star Wars demo was exceptionally convincing...