Yes, but the Yanks, O's and Rays will likely be worse. The reasons are:
Yanks: Age (they had nothing left by August/Setpember), and aren't exactly in a position to add much due to so many contracts tying up the roster space and payroll), and they need bench depth more than anything. And of course, several of their pitchers have injury concerns (Eovaldi, Nova, Sabathia, Pineda, Tanaka), or are at risk of injury/regression (Wilson, Betances, Miller), due to overusage. And yes, they have Greg Bird.. but he's AAA bound with Tex's deal not expiring until after the season. Any chance of a big signing for the OF (Cespedes, Heyward?) will require Beltran or Gardner to be moved, as Ellsbury's contract is an albatross. And of course, there's still A-Rod.. just 2 more years and he's gone and the Yanks will finally be freed of that contract.
O's: No Davis, Chen, O'Day, Wieters, or the money to resign most of them. Baltimore is heading for a hard fall in the standings in 2016, even with Machado around. No chance ownership ponies up for Davis or Chen, as they are Boras clients and expected to get huge money elsewhere(Davis could easily get upwards of $20-25M/year), far beyond the O's comfort level. And of course, Machado's arbitration looms large, as he is expected to command a significant raise from $500K.. should've signed him long term back last year.. either that or Peter Angelos doesn't plan to resign him when he hits free agency towards the end of the decade.
Rays: While they have the pitching... for how much longer? This team needs bats.. and replacements at C, SS, 1B (Loney is likely to be traded due to his $9M salary which the Rays can't afford) and the bullpen. Unfortunately, new stadium talks are going nowhere, and unless something happens between now and the end of next season, or attendance improves or they get a good TV deal, a huge fire sale looms, as the payroll is expected to shoot up in 2017 and 2018. Keep an eye on Longoria--rumors had him possibly being targeted by the LA Angels, as they need a 3B with Freese departing via free agency, and it would not be surprising if he is dealt this offseason, as his salary, despite being a steal, is difficult for the Rays to afford when they can't draw 15,000 per game. It's also possible one or two or their arms are dealt for bats as well, possibly out of Karns, Odorizzi, Smyly or Erasmo Ramirez. Archer will stay, as he's on an affordable deal, and Moore needs to rebuild value.
Red Sox--We know they'll be better in 2016, likely neck and neck with the Jays. Still, there are concerns:
-Will HanRam be able to play 1B, and will Sandoval rebound? Unless Boston eats a ton of money, neither can be moved.
-Are Castillo and Bradley everyday players? Bradley possibly(he's out of options and must make the team, and actually played quite well in the 2nd half), but Castillo is still a question mark, as he badly disappointed in his 289 PA in Boston with the bat. His D was good though..
-Will Bogaerts finally develop that 25-30 HR power that was projected of him? He and Mookie Betts were the MVPs of the Red Sox.. but Bogaerts needs to hit more for power than the 7 HRs he hit this season.
-Can Betts get even better? His improvement this season made Boston fans finally forget about Jacoby Ellsbury (who declined badly with the Yanks).
-Can Dombrowski bring in an ace pitcher to upgrade this 14th in AL ranked pitching staff? And can he upgrade the pen (BTW, to Detroit fans, this was his Achilles heel.. bullpens were his major weakness)
-And last, how much does Ortiz and Pedroia have left in the tank?
Keep in mind as well that Boston's financial flexibility is limited--$177.3M(about $189M with benefits for luxury tax purposes) is projected for the 2016 payroll, so any pitching may come from trades, as Boston's farm is strong, with many big names such as Moncada(2B), Devers(3B), Margot(OF), Kopech(P), Espinoza(P) and Guerra(SS), plus they may try to move HanRam or Sandoval's deals to make room for Travis Shaw(who is playing 1B/3B in winter ball) and to get financial space for a free agent pitcher.