Not weeks. Rather months, and in some cases more than a year.
Actually, except for C and Swift you can't even add submissions anymore, and there seems to be no validated info around of why that is.
The most *popular* story is that they are frenetically reviewing all those riddles and then they reopen the shop.
Another, imo just as likely story is that they wait until they have enough C and Swift riddles, then shut down the whole quiz place for new material.
I still hope, like everybody, that the popular version is the true one as well.
Anyway, don't hold your breath.