The truth is, no one knows for sure yet. There are plenty of fortune tellers here. The METV visa works that way, but non-immigrant visas don’t. People love comparing things but DTV has its own rules. In the end, the immigration officer will have the final say.
I wish my thai visa works that way but it's not. I get permitted until the expiration of my visa. Non-B. That's the case with other non-immigrant visas. METV is the only exception.