Not sure if it would be available in Thailand as a foreigner (or if you would have to get it from authorities in your home country). Can't provide first hand experience. But here is a link for the respective Thai authority (maybe use Google Chrome translate):
Nice. Keep us posted. Questions remain: Will they accept non-residents / tourists applying for the DTV? What kind of proof will they accept for either category.
A bit early. But I am eager to know the details / exact requirements of applying for the DTV in person in the neighboring countries, too. I guess people are hesitant to be the first / guinea pig. I would not want to waste a trip without knowing if it is possible at all and what proof to bring, either.
And the retirement visa (Non-O) isn’t multiple entry. It is single entry. So most retired people are not on a visa, but on an extension of stay. That extension has a fixed end. And if they want to leave and reenter during that time without needing a new visa, they need to buy re-entry permit. This re-entry mechanism comes included in the LTR. Now other retirees get a Non-OA visa. That visa is multiple entry. If they leave and re-enter they get stamped in 1 fresh more year each time - and squeeze out almost 2 years like that. That is how the DTV works.
Actually, closer to 5 years + 179 days + 180 days final extension. Thus almost 6 years. And yes, that is how it is worded in law that it works. But sure, no rush … can wait for first practical reports of DTV re-entries.