Feel free to use them, change them, or be inspired by them for other ideas.
I plan to print them out and give them to the players, similar to adventure cards.
Prophecy 1 (to a greedy dwarf in the group):
The dwarf kingdom behind the Gates of Power was destroyed long ago. Its ruins warn us about wanting too much power. Listen to the warning - because Sathmog's heart still beats in this world!
Prophecy 2 (to a PC who dislikes skeletons/wights):
Beyond Heaven's Rim - in the Eastern Lands - a powerful force is growing. It controls an army of undead that never sleeps and never dies. A wave of darkness is coming to swallow the world!
Prophecy 3 (to a nature loving PC + my players have not played Temple of the Purple Flame yet):
A sickness is spreading - killing the trees and leaving only a Dead Forest behind. What the curse takes, leaks back as demonic energy into the Misty Vale. This dark energy is twisting and changing the Magna Woods!
I hope that is helpful to someone.