ExFAT support has added to Windows and Linux in the latest 1.17-BETA (Build 18) [of VeraCrypt].
For MacOSX, no external command or OS function could be found that would enable VeraCrypt to create exFAT volumes. This explains why exFAT support was not added of MacOSX (no exFAT source code is included in VeraCrypt and we rely only on OS capability in order to avoid any possible patent or license issue).
If someone does now an OSX command that can be used to create exFAT disk, please come forward.
(De: idrassi, In: link )