It was just announced that the Arnold Amateur USA that takes place at the Arnold Classic in Columbus, Ohio next March 2018 will be under NPC rules and regulations.
Class winners will automatically win their IFBB Pro Card.
One small interesting detail in the announcement is that it is not definite. They have mentioned 2018 only.
This announcement was expected due to the fact the IFBB Pro League show will be taking place the day after. It makes no sense for them to have a amateur show under NPC rules and then have a pro show under IFBB International rules and regulations.
This is the announcement in full:
The Arnold Amateur is proud to announce that it will affiliate with the National Physique Committee in 2018 and that all overall winners will receive pro cards to compete in the IFBB Pro League.
The Arnold Amateur will be OPEN TO ALL COMPETITORS around the world with no qualifications necessary. All NPC rules and regulations will be in place. New in 2018 is Classic Physique. More information and registration applications at www.arnoldamateur.com