Well, had you read any of those threads, you will responses from the official Toontrack moderators of this forum stating (as they should):
"(As is common for companies in any competitive industry) Toontrack will rarely comment on product requests
and more importantly; will never comment on products that may or may not be up for development.
In other words, should a product like what you are asking for be in the works or on the planning table,
you would not hear about it any other way than publicly announced through the Toontrack main site and/or via Toontrack news email."
Also among those threads, there is also a number of suggestions from the moderators and from customers
regarding the use of EZKeys to generate MIDI basslines for your chord progressions.
Then, from there, your DAW may include a virtual instrument capable of playing bass samples for the bassline produced by EZKeys.