Assuming:
- Sanji must be caught ALIVE.
- Sanji is mink tribe's benefactor.
- Doflamingo must be saved because it doesn't make sense for Jack to add irrelevant panels yet add nothing to the story. There is also no way there will be another down impel arc 2.0.
- Jack being destroyed by the escort team is a given, unless there is some special circumstance. Some special circumstance must happen, he is too hyped to be killed off screen.
What is the best way to save Doflamingo without sacrificing any of the hype for Sengoku, Fujitora, Tsuru and at the same time Jack?
Jack, as strong as he is hyped, is no match for the Doflamingo escort team. After the world learnt of his importance. Jack got Sanji as a hostage and spared the mink tribe. As a result the escort team is literally fighting with their hands tied to prevent harming Sanji.
At this moment, I believe Jack is still alive and have succeeded extracting Doflamingo. Sanji is either with under the custody escort team or Jack.