I am happy that such an addition to the violin library will be added.
FWIW, as a conductor I chuckle at the different descriptive terms over which some are fencing. The words "epic", "romantic", "expressive", etc. should never be considered apart from their behavior over the ENTIRE dynamic range. Romantic or expressive playing is not limited to the much-needed p-mp-mf range. Little good it would do to have only these dynamics to use if a composition called for a respectable forte, as with dunk187's example of Princess Leia's Theme.
One thing I miss from a lot of electronic realizations of orchestral scores in the strings is an awareness of when and where a string player will be forced to use one-finger portamento, especially when playing larger intervals in altissimo passages. Granted, the need for a fatter, warmer violin section is not to be overlooked, but there are so many other elements to creating a convincing violin track which aren't always employed.
I do agree that having access and control over varying degrees of vibrato are crucial, something I really enjoyed seeing demonstrated with VI solo violin earlier this week.
I'm all for using a larger section-- large sections CAN play softly as well-- it's not *always* about loud playing, but there are plenty of times when I miss a good expressive f-ff as much as I do a convincing espr. p-mp-mf.
I say, bring it ALL on-- and don't hold back.
...and when the violins are done, how about those violas and cellos?