Somewhere on Weibo (a Chinese site) some really big (official?) images of a commemorative coin in a very nice box, for the Chinese New Year (year of the Rat).

This is likely to be released by Hasbro in China, not Hasbro Asia (Hong Kong), which will make it difficult to find one from outside of China.
As noted in the TFW news post, Hasbro China previously released a fancy commemorative coin for the 30th anniversary of Transformers in China, in 2018... and just like that one, we don't really know how this one will be released or when.
It looks very nice though.