This year's team should be special, but what is nearly unprecedented is that the team is so loaded for improvement after this year. Only Horford and Baynes are on the back nine. The rest of the team is distributed very evenly from age 28 (Hayward) back to 20, and the team has 3 high quality draft picks besides their own coming.
Barring some bad luck, this is going to keep getting better as far as the eye can see.