With Glue Tools' ARRIRAW AMA plugin, you can load and play native .ari raw files directly inside Avid without rendering or transcoding. The ARRIRAW files will play back as if they were always natively supported by Avid.
As the footage is completely raw, you have full access to the meta data and the color science the camera hardware uses. You can modify the color of each individual shot non-destrucively, leaving the original raw files unchanged. This plugin will perform all of the importing, playback, debayer, white balancing, and color correction functions to the ARRIRAW image sequence.