The 'classic' Black Mage design is already echoed in the BLM AF1 set design, and the designs for the mammets (the clockwork automatons made in Ul'dah that are often used for menial tasks). In fact, FFIX's Vivi actually appears in the HW Hildibrand questline as an actual mammet complete with his FFIX appearence (he gets around with the name 'Gigi', but it's stated his real name is literally Vivi), and you even get him as a minion at the end of the quest line.

Also the 'Minion of Light' minion previously offered as a Veteran Reward for subscribing for a certain length of time in the game has as one of it's random appearences the classic FFI Black Mage sprite (along with Fighter and White Mage), so I'm afraid you are not going to see FFIX's Black Mage race here I'm sorry.