Will Tomb of Annihilation be more sandbox/open world or story driven?

AL How much renown and downtime should I award to players in SKT?

I’m planning on running Out of the Abyss and Storm King’s Thunder together, any suggestions?

How much renown and downtime should I award to players in Storm King’s Thunder?

Will Tomb of Annihilation have linked adventures for Lost Mines of Phandelver like Storm King’s Thunder?

On Storm King’s Thunder, where did the idea/need for Chapter 3?