The inheritance has been coming into Thailand with covering documentation which makes it exempt from taxes.
And yes, I am a tax resident here.
The whole system, as usual for Thailand, has just been thrown together with no thought processes behind it. I am not expecting anything to come of this for at least 2 years, if then. Depends if we get another change of government as well.
Interesting days ahead which I will not worry unnecessarily about until there is something in concrete.