Definitely! I mean, we don't know who the 2019 pick will be used on, so it has the potential to be a very, very good trade. Young could end up being better than Luka. This could be us taking CP3 instead of Marvin this time.
More likely: the Hawks never really seem to know something that other teams don't, so Luka will probably be a lot better than Young. That said ....
It's hard to compare two things when one's a total unknown. If the Hawks end up getting the 6th pick in 2019 or an even better one in 2021, it will have been an absolute heist. But we're all guessing, to be honest.