Originally Posted by
Klmdwsq
I do recall reading in skymiles magazine (delta) last year that the membership thresholds and conditions for skymiles qualification in 2015 (for 2016 memberships) had been announced.
Offering this level of predictability makes a lot of sense imo.
That's only because DL was significantly changed! The programme rules of frequent flyer programmes are typically stable over time except that once in a while, they change them quite significantly. FB did that several years ago (aka "April Fool's Day" in Flyertalk linguo) but there is no reason to expect other major changes soon.