The State Department Cultural Heritage Center has announced that the Cultural Property Advisory Committee will consider public comment for a renewal of a MOU with Honduras and a proposed new MOU with Nepal. According to the State Department notice, the period for written comments will end on September 12th, with a public session to take place on September 19th for oral comments.
Based on the notice, it does not appear that Honduras seeks any new restrictions on coins. On the other hand, Nepal apparently does seek import restrictions to be placed on coins, particularly the early "Lichhavi" types.
For a direct link to comment, see here. Alternatively, go to regulations.gov, and then search for docket DOS-2023-0023.