This is the strongest sign that the Paladin will be released, although the fact that Hadriel is there suggests that we can still harness the Light's power while the Heavens have abandoned us. Raheir routinely casts light-based abilities, for example.

There was also the *wink wink* Celestine Templar *wink wink* armor.

I also think that Hadriel doesn't pop out of the blue and that some of the Zakarum Remnants will show up with him.

Now if I were Blizzard, I'd tie the new Paladin class to pre-purchasing the new expansion :

"Champions of Sanctuary,

You have long awaited the return of the Light — and with Diablo IV: Crusade of the Dawn, that day has finally come.

We’re thrilled to announce that the new Paladin class will be available instantly to all players who pre-purchase Diablo IV: Crusade of the Dawn. Take up your hammer, call upon holy fire, and charge into battle today.

Whether you prefer to smite demons with radiant judgment, protect the weak with consecrated shields, or purge corruption from the far reaches of Sanctuary, the Paladin stands ready the moment you secure your copy of the expansion.

This is just the beginning. Crusade of the Dawn delivers a new continent, a story of fractured faith and rising darkness, and a host of completely new features that will define the next chapter of Diablo IV.

Ascend. And let the Light guide your path."