I think the intention in 2049 was to keep Deckard's nature ambiguous, as per the original, and I think this was well handled.
Hampton Fancher has stated that Deckard-as-Replicant was Ridley Scott's idea, halfway through filming, but Fancher always preferred having the ambiguity. I'm with Fancher on this - I'd rather have it as an unanswerable question.
As mentioned up-thread, I was very happy with it. It looked gorgeous, didn't go in any awful directions or introduce anything jarring and at odds with the original.
It's not perfect, but what is?
EDITED: 10 Oct 2017 10:00 by WINGNUTKJ