Maybe. US immigration law and the implementing regulation is complex and there's some confusing grey areas. This source seems to indicate that O-1 is (or was as of 2011) treated as dual intent in that you can apply for permanent residency while on it, but also seems to indicate that you still need to return to your country of origin rather than transition in place. [0]
> Also is there a rough estimate of how long wait times are for different countries of Origin?
This might help, though it's technically how long people now being admitted in each category/country have waited from establishing eligibility rather than how long people entering the queue now with wait. [1]
