Basically for each montly sub you pay in a row you recieve items:

Starting Nov 4th:

Veteran Rewards Items

Month 1: Pop Daeva

• Expand Cube Ticket
• Pop Legend emote
• 4 Lodas Amulets
• 4 Revival Stones

You jumped into Aion and are off exploring the visually stunning world of Atreia. To help you along in your travels, we will give you four Lodas Amulets, four Revival Stones, an exclusive Pop Legend emote, and an Expand Cube Ticket.

Month 2: Honored Daeva

• 4 Lodas Amulets
• 4 Revival Stones

This month, we will give you four more Lodas Amulets and Revival Stones to fortify you against the challenges ahead. Good luck! Atreia is counting on you.

Month 3: Dance Daeva

• Adept of Aion title
• Forbidden Dance emote
• 4 Lodas Amulets
• 4 Revival Stones

Your commitment has earned you the title "Adept of Aion" and another exclusive emote: Forbidden Dance! In addition, we will give you four Lodas Amulets and four Revival Stones.

Months 4 and 5: Honored Daeva

4 Lodas Amulets
4 Revival Stones

These months, we will give you four more Lodas Amulets and Revival Stones to fortify you against the challenges ahead. Good luck! Atreia is counting on you.

Month 6: Soaring Daeva

• Wing Feather of the Black Cloud Traders (level 40)
• 4 Lodas Amulets
• 4 Revival Stones

You've played for half a year?still, there is much more to accomplish!

To boost you to new heights, you have earned a Wing Feather of the Black Cloud Trader (level 40). This wing set not only increases a character's flight time, but also HP and MP. We also reward you with four Lodas Amulets and four Revival Stones.

Source/info/instructions of redemtion:
http://na.aiononline.com/veteranrewards/