It certainly bodes well for next year.
The only major regression candidates the Braves have are Freeman (an 1.100+ OPS over the 2nd half is more than we can reasonably expect from any player), and Inciarte (unsustainable .400 BABIP in 2nd half, equally unsustainable .367 BABIP vs LHers over the full season).
Major areas where the team can expect improvement are SS (Swanson should get better), 2B (Albies will be up at some point), 3B (easiest position on the roster to improve), and SP (confirmed they will make additions here, and Julio should still be at his peak).
Major areas where we should expect equal production are C (addition should offset the unexpected production of both Recker and Flowers), RF (Markakis is what he is), and BP (typical BP we always see cobbled together).
All that adds up to a 75-80 win team in my opinion, depending on how well they upgrade 3B and the rotation. The skeleton of a competitive team is starting to take form.