Nope!

Not from Yamaha.

You may find some who have put together a sample based instrument based off of Yamaha keyboards.  Native Instruments' sampler or the like.  If you search around you may find something.  I can't vouch for any of these and sometimes question the licensing of how these could exist.  I don't personally have any installed (and haven't ever) so I can't speak to how useful they are.  MODX+6 comes with something called Sample Robot.  At least, I though MODX was at some point given a license to use the Montage version of this.  I could be wrong.  But if you can ask about its availability for you as a no-cost download and then possibly use it to "clone" your own MODX to create a sample set and then go through the work to create your own instrument.  The free version we get is more about importing other instruments into the Montage (MODX) and less about creating something that can be plugged into a sampler.  The full version of Sample Robot is better suited for that since it exports formats that can be used directly by the popular sampler products out there.  So this is another route you could take.  To use Sample Robot (full) to create a set based off of your own instrument.

None of the options available to you approach the Montage M "ESP" VSTi.  What you can do or produce is something that's more like single snapshots of the Performances.  No modulation features.  You can't transfer anything from the VSTi to the instrument itself.  It's a different kind of ballgame.

Check out the John Melas software - Total Librarian, Performance Editor, Live Set Editor.

Not a VST but a standalong toolkit. Just search for 'John Melas Modx' on the internet.