I recently chatted with a collector who owns many military vehicles, including an Ontos. He told me that one of the model companies --- it was AFV club, I think, but don't quote me on that --- had taken measurements of their Ontos for a future kit release.
Then again, AFV Club has been touting their new M-42 Duster for quite a while...and still no kit!
The only other obvious suspect that I can think of would be Academy --- they had an Ontos pictured on the cover of their Sheridan box art...maybe they were testing the waters (hey, I bought the Sheridan and really enjoyed building it, despite the accuracy issues) or were whetting our appetites?
Anything is possible --- this is a kit that I would probably buy two of, if it was reasonably priced...
Something to look forward to --- I hope that it happens... For now I am awaiting the Duster and Aussie Centurion...
Much Aloha,
Johnny B.