The endorsement process is typically stated to take 4-6 weeks. However, it can sometimes be faster and sometimes be slower.
The majority of the time is spent waiting in a queue until your application starts to be processed, so you won't get any updates until they actually start working on it.
If there are no problems with the application then the only update you will receive will be the final approval / congratulations email.
I'm approaching 6 weeks as well. Haven't heard back from them and it's concerning.