I just got this email:
Travel is important to you, and so are its rewards. That’s why we want to inform you that in July, 2015, Avis First will become Avis Preferred Plus.
While members will no longer have the option to receive Weekend Rental Rewards, you will continue to earn your choice of Frequent Traveler credits (airline, hotel, etc.).
If you are an Avis First member, please continue to use the avisfirst.com website throughout the transition process to monitor your activity and view any unused or expired Weekend Rental Rewards.