Similar to the eagle eyes that noticed Azzi had braids for her first game played after the initial injury, the key for Caroline is when she's dressed in uniform and participates in pregame activities. Even then, there's no guarantee that she'll play, similar to Ayanna. She has to be cleared for actual practice, contact at practice, etc, before being cleared to dress. If we're not seeing anything about her practice participation from the coaches, then there's no news. I'd rather there be no news and that all proper steps are taken to getting her back 100%, no matter how long it takes.
One cautionary tale - Remembering back to Casey Cochran, UConn QB, he enrolled in spring of 2012, played in 8 games in 2013, started in 4, then started in 2014 and played 1 game before retiring due to multiple concussions. How many did he have during his entire FB career, all the way back in HS, etc? He might not know and not all of them may have been diagnosed.