Where are these from?

[Von Krieger]

Somehow I ended up poking around in the Set Bonuses category of the database. I've never heard of these before:

Inexhaustibility: Out of Combat +Hit Points/Endurance
Large Critical Hit Bonus
Small Critical Hit Bonus
Neuron's Alacrity

Judging from the info that appears in game, they're future sets along the lines of the ATIO's we saw at PAX, I do believe?

[DeProgrammer]

Well, as per screenshots that were posted on the official forums, the critical hit bonuses were involved with Scrappers and Stalkers (maybe?).