How can XTS be used to detect the presence of TrueCrypt hidden volumes?
They don't issue cryptographer's licenses to pseudonymous carrion fowl, so I can't rightly claim to be a cryptographer, but I can confidently say that if there is any problem here it is far more likely to arise from unrelated mistakes in VeraCrypt's protocol or implementation than in cryptanalysis of AES-XTS.  Any distinguisher on AES-XTS implies a nearly-as-good distinguisher on AES itself, and the difference is so small for a number of queries so far below the birthday bound as this that effectively it would mean someone has broken AES.