From u/LadyDevann on this link.
We have a new Community Calendar coming soon! We're in the process of finalizing it right now, but it should be ready for next week's Inside the Vault.
In the meantime here are the currently planned events for the rest of the month:
April 8 - 12: 25% off Legendary Vendor Sale
April 15 - 19: Double SCORE
April 22 - 26: Caps a Plenty
April 29 - May 3: Gold Rush