It's official - the Crossover Rewards program fully ends July 15th. More details
here.
Originally Posted by Delta website
- Crossover RewardsTM will continue through July 15, 2018, with all current benefits being honored through that date. We expect to have more to share on this program before July 15. SPG hotel bookings for stays with a check-out date after July 15, 2018 will not be eligible for earning miles or hotel benefits under the Crossover RewardsTM program