ISO code change is a matter of change, I feel our focus should be more into give Wikipedia more maturity and stability rather than spending time for mere name change, changes should be in work not just the name, it's a good news infact for being an Odia and calling myself from Odisha, but Oriya/Orissa are not some derogatory names, "Ori" has been taken from "Ora" which is derived from "Sumeria", one of the ancient tribes of the subcontinent which gives the originality and says about the nativity of the words Oriya/Orissa rather than saying they are the product of colonial rule. For a native Odia they both don't make much complication, but for people of other states it makes the difference as because of the spelling they have been mispronouncing the name of the state and language.