yeah but we're talking about G1 reissues. I suspect that they don't need to pay royalties for reissuing existing moulds. The royalties and permission would have already been obtained at the time the toys moulds were created and patented, and after that I think that's it.

One reason why I suspect this is so is because look at Bumblebee. We know that for a long time Volkswagen has persistently refused to allow any of their vehicles to be associated with war, which is why the only post-G1 VW Transformer mould we've seen has been the Donald Duck Disney Label TF (since Donald Duck isn't portrayed as being a warrior/soldier in that toy). Yet HasTak have been able to reissue the original Bumblebee mould ... repeatedly! And they were able to reuse the mould for Glyph and Bug Bite.