I think that's a pretty optimistic projection, but I don't think it's out of the realm of possibility. Kevin Pelton at ESPN has been making that statement for a couple months now. I've got them pegged for right around 45 wins, but I'd say 50 wins and 4th seed is probably a bit more likely than us finishing with a worse record than last year.
It really surprises me that so many people around here really overlook the way we finished the season. We were the 2nd best team in the East for like a solid 1/3 of the season (24-12 over the final 36), after the current roster came together. Even after adding David Lee and Amir Johnson, were still the 5th youngest team in the league, and while their was no "fireworks" we did manage to plug up some of our biggest holes this offseason. We really struggled with rebounding, scoring and interior defense last season and the additions of Lee (Interior scoring, rebounding) and Johnson (Interior Defense, Rebounding) will make our top 15 defense a top 10 one. Plus with the development of our own young guys (a Contract year Sully, Smart taking a leap, Young's development, the rookies contribution) And the continued progression of our coaching staff and culture (Stevens, the establishment of Smart, Bradley, Crowder etc as the leaders of this group) will make us a pretty good team this year. Certainly one that will be tough to beat night in and night out.
My hope is we win 44-48 games, grab a 5th seed and make it to the 2nd round while the Nets and Mavs gift us two top-10 picks.