Yes, no idea but I really hope so too.
I bought last year in Singapor a young plant of V. devogtii but until it blooms, I have a doubt.... It's a fact, that devogtii seems very close to merillii. I think that the lip is longer, darker and thinner on the mid lobe.... But have to check.
V. celebica, I have never seen to sale anywhere. The only time I saw plants to sell, the pict didn't match to the real ones..