War Plan Scaling and Reset

War Plans include:

A rank progression system (shown up to Diablo 4 Items Rank 10)
Improved rewards for completing multiple plans
The ability to reset and create a new plan

The reset option strongly implies that difficulty increases alongside rewards. If it becomes too difficult, players can reset and start fresh.

Endgame Skill Trees: Customizing Every Activity

In addition to War Plans, every major endgame system (except Echoing Hatred) now has its own dedicated skill tree.

These include:

The Pit
Lair Bosses
Helltides
Whispers
Undercity
Nightmare Dungeons
Infernal Hordes

Each time you complete an activity through War Plans, you earn activity experience. Once enough is earned, you gain a skill point for cheap D4 materials that activity's tree.