This was my reply from ram cares through the Uconnect website regarding OTA updates two days ago:
Thank you for contacting Ram Customer Care.
I would be happy to provide some information for you!
Currently their are no over the air updates available for your vehicle, as only major updates are sent over the air. Currently, there are radio enhancement updates available for the dealership to complete, if you are having any radio concerns.
If an over the air update is sent to your vehicle your radio will prompt you to complete it!
Please do not hesitate to contact us if you need any further assistance by calling us at (866) 726-4636.