Trials missions

Wassup,

So yea i participate in the missions, unfortunately i'm in the last ranked one. Now i think last week, cause i figured that i'd have enough missions left to get my 300 tokens, wasted 15 tokens; 1 key fragment & like the blue essence thing. The thing is about to end, but i'm still in week 3. I'm stuck at 285 tokens at this moment & i need 300 for the conqueror varus skin.

Am i going to get the week 4 missions or how does this thing work, i read the article when it was announced but i dont think it gave me the information i require.

Thanks in advance