Official (but unpublished) photographs from 2015 showing Vajiralongkorn with his latest consort Suthida aka Nui, a former flight attendant. The couple appear to have been married sometime earlier this year, although this has not been officially announced.
The latest New York Times story on Vajiralongkorn includes a quote from Kasit Piromya discussing Suthida: “She’s an air hostess, very lively, highly intelligent. She can ski, she can bike. She loves music. She knows what is good wine in Italy.”
Once Vajiralongkorn officially becomes Rama X, it is likely that Suthida will eventually formally be described as queen of Thailand. She is already shown relatively often in royal news broadcasts but without being identified.