Solo/Duo Queue is now live in OCE, which means NA will have it soon

...granted there are no serious issues which require them to hold off of course. They took longer than intended because they didn't want a repeat of the Flex issues.

http://boards.oce.leagueoflegends.com/en/c/announcements/aZrUTtbb-soloduo-queue-now-live-in-oce