This isn't the East of yesteryear... Getting into the Top 4 will be hard. The East is quite competitive now.
Who knows what becomes of the Sixers with Ben Simmons, if he gets traded, improves, doesn't.. who knows...but they're still a potential top team. The Bucks are defending champs.. the Nets, healthy, are the most dangerous team in the East. The Heat have a solid squad, as do the Celtics (if they can stay healthy). At this point you're sitting at 6, and we haven't even mentioned Trae Young and the Hawks.
I don't think the Knicks can repeat as a #4 seed, so I see them falling quite a bit. Wizards likely to suck now, don't see much change from Pacers/Hornets.