If he can get back to that level of 16-18, hes definitely one of the best if not the best sprinter in the world. Might be a bargain!
Question is if hes gonna ride TdF. With Valverde off the squad and only one real leader in Mas, I can see Movistar going to the Tour with both Mas and Gaviria. Should be doable, but I have no idea what the plan actually is. Im intrigued about how he will do in the classics, early on in his career I felt like he would be a big star in those races, but it hasnt really resulted in anything so far. Roubaix in theory be a great race for him.