I don't forsee Flyertalk changing that much. Of course there will be forum consolidation as the airlines consolidate (coming up are DL/NW and BMI/LH if/when they actually combine the loyalty programs). Of course this will need to be revisited if un the unlikely event that the structure of the loyalty programs changes drastically (eg. if the Miles/Points become more readily interchangable / combinable etc).
The non-Miles/Points forums are addressed in another question.