Season 6 Warding & Trinkets

So Season 6 is just around the corner, and possibly the most major change to the game was the removal of Sight Wards from the shop.

I understand the importance of vision in general, but what should my team and I do in terms of Trinkets and warding? Also, with Rift Herald coming onto the map and jungle sustain becoming an issue of the past, how do these changes affect the warding dynamic of the game?