Being as its going to be some time before we get Trillian (and if Omnisphere is anything to go by it will be one hell of a product!) I though I would chime in with a wish.
When listening to a real bass playing there is often pick up notes (and even 'muffles' of varying lengths before the beat, which give character to the sound of the line.
Because these pick ups often involve the sliding of a finger across a fret or some other manoevre, these notes frequently have a different (though related) character to the regular sustains.
When creating Round Robin notes Engineers sometimes use techniques to subtly alter the same sample - they might initiate the sample slightly after the attack, or use envelopes to create the impression that one is hearing a different note of the same genre of notes.
Sometimes I have used two (or more) tracks of bass notes, one for the 'regular' samples, and others with doctored for perhaps shorter, punchier, or even softer samples and interchanged between tracks to create the riff. This is very effective but very time consuming.
Now if we could get at the envelope, amplitude and the firing point of an individual bass sample - for just a single instance of a note, rather than for all notes of that particular pitch, and make those subtle alterations, this would add a lot of character to the line and make it feel like a real bassist who might hit one note with one attack and the next subtly different.
This could be done if somehow a user altered copy of the sample was stored in the background together with a pointer calling that note when the particular location in the melodic line was reached.
After one has created such 'bespoke' notes, then it could even be possible for the user to set them as 'round robin' sounds so that sample a playes on first call fo C# sample b on second call - the standard way.
I own a lot of software EWQ Orchestra, Halion Orchestra, GPO, VSL, Kontakt, HAlion 3 and a lot more, and so far as I am aware none of it makes this easily possibly. This really perplexes me as I have always imagined that this function - the ability to altersingle notes (e.g C#3 stacatto) sound without affecting all the other 'C#3 stacatto's' would be something essential to the goal of realism. A real musician does no less when they frame their embrouchure/technique for a given passage.
All this might be planned of course, Eric is a fabulous engineer with a great team.