Linux on Priv?
Priv is for "private"
ain't happening soon.
For good reason.
Blackberry has to look competent security wise.
Can't afford opening things up.
Best you will see is Priv with Android .

Same would go for the passport.
Although...
I have read of android on the passport... and seen on ebay some passports with android running on them.
I do like the screen dimensions on the passport..though...
and almost like the minimalist pseudo keyboard ()
but it would be nice with more options than either failed bb os or android....