I think the C's make the playoffs but I am convinced Horford is coming. But even if he doesn't the C's can still bring Sully, Zeller, Amir and Jerebko back and put out the same team as the year before but with a year of growth from the youth. So if the C's duplicate what they did last year or even lose 1-3 games less, which four teams under them that didn't make the playoffs are going to pass them to kick them out of the playoffs?
Indiana and Detroit. Yeah. Probably or maybe.
Charlotte isn't any better and might be worse so no. I don't see that Washington or Chicago have made their teams better, so no.
Which means two teams from Orlando, Milwaukee and New York, who have improved their teams, would need to get a lot better. Orlando would have to be 11 games better next year, Milwaukee 12 games better and NY 13 games better and that's assuming a Celtic win total of just 45 wins, which I think is extremely low even if they just bring back the same team with ET gone and replaced by Brown. And the youth(Smart, Rozier, Hunter, Mickey) are going to be another year better.
So yeah. If the C's get Horford I think they could be a 50+ win team. If they come back with the same team as described above, they are a 45-48 win club and probably in a 7th to 4th seed. Barring major injuries, I see the C's making the playoff and giving the Nets a pick somewhere between 17-22.