Though it's hard to tell much from underneath the heavy camouflage, it's clear from these spy shots that this is indeed the Veloster, and given the center-exit dual exhaust tips, it seems to be the Turbo model and not the base naturally aspirated version. It seems to be wearing a bigger grille like the one Hyundai put on the latest Genesis, among others, and new bumpers front and back as well. The half-door on the right side does appear to be carrying over, it's wearing new wheels, and we're told there seems to be something afoot inside the cabin as well – likely revolving around an updated infotainment system.
Whether there are any consequential mechanical changes as well, we don't know. That said, development seems to be in a fairly advanced stage, so we wouldn't be surprised to see a refreshed Veloster on the show stand sometime later this year or early next at the latest.