If it ever is ported (I think it could be) it would have a hell of a time getting anywhere near as comprehensive as http://www.gamesas.com/index.php?/topic/1083121-relz-mlox-a-tool-for-anolyzing-and-sorting-your-load-order/ already is.
You can read this http://www.gamesas.com/index.php?/topic/1107170-boss-support-for-morrowind/. :read:
These. BOSS used to (in 1.5 and probably 1.4x) run under Morrowind, but it didn't have a Morrowind masterlist. I opened that thread to gauge interest, but as you can see mlox was fairly widely used and far more developed and suited for Morrowind, so when Nehrim came along, I switched Morrowind support for Nehrim, and created a masterlist for that, which Psymon now maintains.
Essentially, there's just no need for BOSS in Morrowind.