As seen in this picture, there is no FoAF under "Year 1 Primaries" nor is there an undiscovered slot.
Based on that evidence we can draw 1 of 2 conclusions:
1.)It has been changed to be a Year 2 Exotic and will be obtainable with TTK.
or
2.) It is completely unobtainable and Bungie has no plans of giving any more out or allowing it to be upgraded to Year 2.
Thoughts?
Edit: changed point 2. Apparently the guy who got it still has it and uses it.
EDIT2: FOAF = Recon Armor
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Jade Rabbit is the Fate of All Fools.