Organizing a Multicam Clip in Premiere
I was recently editing a 5-camera short film with Premiere. Over 7 hrs worth of footage. Lots of going back and forth over the clips. Lots of trying different angles. All that over many weeks. Yet, we never got lost or confused about what was happening or where things were.


Create your multi-cam sequence.
Log all camera angles individually by using a lot of markers and/or extended markers. Label those markers clearly and consistently: mention the subject discussed and whatever interesting thing the interviewee does (facial expression, laughter, hand movement, etc.)
Maybe use a marker-color per subject-matter.
I would make sure to keep the original multi-cam sequence cuts-free. Just duplicate it as many times as you need to: that way you can always come back to it, a clean slate, if and when the cutting gets messy.
Edit the interview by copying and pasting bits that deal with similar issues to as many sequences as you have subject matters. Duplicate those initial "sub-sequences" and edit their duplicates down, as the director and you see fit.
Make sure that you name those "subject-sequences" clearly. Let's say one is about "Boats". Call the first one "151031_Boats_E01" for the date, the subject matter and the edit number. Then the duplicate would be called "151031_Boats_E02", etc. Duplication is you friend. Use bins, etc. I'm sure you have your workflow already anyway.


That way, you should be able to get back to your edit and the various subject matters over the course of a few months without finding yourself lost.