Wizards of the Coast have a new 3-paged PDF which you can download for free.
Dungeons & Dragons have started a new playtest on two classes; the Barbarian and the Monk.

New for the Barbarian is the Primal Path feature: Path of the Wild Soul.
The realm of the Feywild abounds with beauty, unpredictable emotion, and rampant magic. A barbarian exposed to this realm feels emotions powerfully and magic saturates their body. When a barbarian who follows this path rages, it is a bellowing roar for freedom, an explosion of expression, manifesting in unpredictable ways.
Path of the Wild Soul Features
| Barbarian Level | Feature |
| 3rd | Lingering Magic, Wild Surge |
| 6th | Magic Reserves 1d4 |
| 10th | Arcane Rebuke |
| 14th | Chaotic Fury, Magic Reserves 1d6 |
The Monk is testing a new Monastic Tradition feature: The Way of the Astral Self. These are monks who see their Astral selves as their true selves.
Way of the Astral Self Features
| Monk Level | Feature |
| 3rd | Arms of the Astral Self |
| 6th | Visage of the Astral Self |
| 11th | Awakening of the Astral Self |
| 17th | Complete Astral Self |
Tempted? Download the subclasses.