I do not think they mean that only a handful of year one exotics will be upgradeable in the TTK. How WE view upgrading is an increase in Attack value. But remember, they just showed us how they are doing a metric system like change with Attack/Defense. Year 1 exotic: 160 damage Year 2 exotic: 280 damage Year 1 exotics have the upgrade bubbles, meaning they will be able to be brought up to scale with year 2, which won't have the upgrade bubbles. I think what they meant is that only a handful of weapons will get the Taken King changes for perk layout. (IE how the new Suros Regime has the new Suros perk layout and has the new faster fire perk.) Edit: infusion on year 1 exotics is a schroddingers cat. Light beyond nemesis was upgradable to year 2 so it would be pointless to make year 1 with infusion. EDIT 2: I WAS WRONG, GET OVER IT.