If he dominates the Tour de Suisse the sponsors might get impatient and will pressure the team to send him to the Tour. If he rides for the gc I expect his form to fall of the ciff in the Tour at some point, as
@Logic-is-your-friend said, peaking from Liege until after the Tour is not a thing.
If next year Lefevre is all "actually we want to focus on the Olympics plus the Tour starts in Italy and Remco had many bad experiences racing in Italy" I'm all for calling him out on his bs.
Stagehunting at the Tour would be fine, but that would mean actually saying that you don't go there for the gc from the start and not blowing smoke up anyone's arse...