If Hoglander follows up last year with another decent year, he's absolutely someone management can use to get an upgrade at the deadline. By that point, you'll have gotten most of the juice out of the contract, and there's no guarantee of similar outperformance on the next one.
All this depends on who's available and the return obviously, but he's the one guy on the current roster where it's easy to see how he'd have more value to another team post deadline than he would here.
The ask for an elite upgrade is often a young roster who can play top 6/top 4, a 1st, and a high-end prospect. Rarely does anyone actually meet that price (its usually 2 out of 3 unless the player you're acquiring is young like Eichel), but if the right fit shakes loose & the player is truly elite, they shouldn't hesitate to throw Lekk in there too.