Russell looks quite promising. If he plays, does he get 4 years?
Yes, I believe so. He hasn't used any of his collegiate eligibility yet.
Confidentiality rules don't permit me to get into the discussion of current players' health or academic status. Without getting into Braedan's specific situation, I can say that:
1. Brown does not permit an undergraduate student to register for a 10th semester unless that student is a candidate for the combined AB/ScB degree, which is a five-year degree.
2. The Ivy League allows a student athlete five years of eligibility from his/her matriculation date, but doesn't allow red-shirting. (For example, a student can take a year off from school in the middle of his/her studies, and still play as a senior. However, if a student takes two years off, he/she would lose one year of Ivy League eligibility.) A case in point is Brown basketball player Rafael Maia'15, who wasn't able to play his freshman year for reasons beyond his control, and graduated a couple of weeks ago. He has one year of NCAA eligibility left, and will be playing at the U of Pittsburgh as a graduate student. If he had stayed at Brown to do his master's degree, he wouldn't be allowed to play due to Ivy League rules. My understanding is Brown appealed to the Ivy League but lost. However, if he had been an AB/ScB candidate he would have been allowed to play under Ivy Rules.
3. Jeremy Russell's situation a few years ago was a good example of what I'm talking about. He didn't play during his third year due to an injury, but was allowed to play during his fourth and fifth years because he was an AB/ScB candidate.