I ordered my ultratech and thunder pins today...
ki pins are now officially half done.
Supposedly the pins are going to be released in the same order as the characters were unveiled so that leaves:
-Orchid
-Sadira
-Spinal
-Fulgore
not sure what else they're going to have for the challenge pins... I'd guess we'll see an "ultra combo" pin at some point.
EDIT: and if anyone wants a pin book there's one for sale for $10 on eBay right now:
http://www.ebay.com/itm/Killer-Insti...item4d1c14afbf