There is no official information and I'm not sure how far this is true. When countries keep on planning to consider bitcoin as legal tender, a country to consider Bitcoin Cash as legal tender is a different view.
Brison is the world’s first elected official to accept his salary in Bitcoin Cash cryptocurrency.
Brison described the Bitcoin fork as “innovative” and “fast-growing.”
During the fork it created the biggest controversy of cryptospace. Which is the true bitcoin. Bitcoin Cash was among the biggest cryptocurrencies by marketcap, but it wasn't able to keep up the growth. Earlier it was discussed as the contender for bitcoin, but it failed to perform. The one stated to be the true bitcoin now holds a 0.34% market dominance. I don't know how far this adoption of bitcoin Cash as legal tender gonna help St. Maarten.