To me, Nedeljkovic in particular is a guy I would want to heavily over-season before throwing him into NHL action. Goalies his size really don't make it into the league as "raw" prospects anymore. They need to be on top of their game mentally and athletically, because they're not going to survive as Darling-style shot blockers.
Of the few current goalies 6'0" or under, the only one who's outside the 27-33 age range is Saros in Nashville. Ned might be the next Saros, but it's a lot more likely that he would be a Raanta or Dell who doesn't really emerge till his mid-20s. That's another 2-3 years development time and realistically, a high likelihood that it ends in another organization.