Wieters won't get that high.. in 2013, he was barely replacement level (0.5 WAR), due to a decline in his defense. He hasn't been close to 4.0 WAR since 2011. And there's also questions how his throwing will be affected post TJS.
Gausman's either in the pen or AAA.. unless they move/non-tender a starter in the offseason. Especially considering how much Jimenez is owed. Considering the high risk several of their starters regress (everyone except Gausman pitched well above their peripherals), they would be advised to trade a starter for some help, as it is unlikely Markakis or Cruz will return, as they will likely command money the O's can't offer due payroll concerns with all the arb raises.)
And without Cruz, they still would have won the division. Unfortunately, it is unlikely the O's will be able to retain him, considering teams like the Yankees, Tigers, Rangers, Mariners, etc. will give him more money.