I think so based on frequencycheck.com, at least for existing band 7. Not sure about future bands however the phone itself should support band 28 (source gsm arena).
https://www.frequencycheck.com/compatibility/lzrGfA/motorola-moto-z-td-lte-64gb-xt1650-03-motorola-sheridan/brazil
http://www.gsmarena.com/motorola_moto_z-8094.php