There isn’t a great deal of activity in this forum with the site being run more like a repository at the moment. If you don’t get any useful response, I’d suggest trying Christian Henson Music on youtube (or maybe elsewhere) or Pianobook on youtube (again possibly elsewhere).
Christian seems to communicate about Pianobook everywhere except on Pianobook, which I guess makes sense as he probably has more views elsewhere.
And he has said before that Pianobook is essentially run by volunteers and doesn’t take priority.
If the worst comes to the worst you could contribute your samples in as good a state as you can and then maybe someone will take it to the next level.