Worlds Missions Not Showing Up With 1 Week Left

To my knowledge, the Worlds missions still had about a week left to be completed. Last night I finished up quite a few and hadn't progressed past week 4 so I know I still had some left. I wake up this morning to find there are no remaining missions. I almost have enough for the prestige Riven skin and would like to be able to finish up the missions. Is this intended or are the missions bugged?