I've only seen a few reports with pictures from the NY Show so far.
Autospies - with a lot of pictures of the infotainment system
Autoweek - with a few pictures, including 1 good one of a more aggressive rear diffuser on the models with the 19" 5-hole wheels from QV
Car and Driver - with some exterior pictures.
Still no word on differentiation between base and Ti models, but I would guess the Ti models are the ones with the 19" wheels and more aggressive diffuser. This and the Q4 versions were not shown in Geneva.