If Tulo can come out of the gate healthy and be successful, another team might be willing to roll the dice on him. It looked like Ryan Zimmerman was done a couple of years ago, but had a huge 2017 season and was still relatively decent in 2018 when he was on the field.
If Tulo has a productive 2019 season with the bat, you could move him to first base or DH in 2020, with Smoak and Morales both gone. Next year his contract isn't that absurd if he returns to his 2015/2016 form - at $14M. If he's stubborn and won't move to 1B or become the everyday DH, he'll likely retire and that would free the Jays from his contract.