Best case scenario: 6 weeks from endorsement application being submitted until approval and then a further 8 weeks to receive the certificate package.
Worst case scenario: 8 weeks from endorsement application being submitted until approval and then a further 12 weeks to receive the certificate package.
Actually, if the certificate package gets lost, which is not unheard of, then you have to wait the 12 weeks before asking for a replacement which could then take another 12 weeks to arrive!
I'm currently 9 and bit weeks into waiting for a certificate package to arrive and getting a bit worried it's gone missing. 
@AlecTrevelyan wrote:Best case scenario: 6 weeks from endorsement application being submitted until approval and then a further 8 weeks to receive the certificate package.
Worst case scenario: 8 weeks from endorsement application being submitted until approval and then a further 12 weeks to receive the certificate package.
Actually, if the certificate package gets lost, which is not unheard of, then you have to wait the 12 weeks before asking for a replacement which could then take another 12 weeks to arrive!
I'm currently 9 and bit weeks into waiting for a certificate package to arrive and getting a bit worried it's gone missing.
Note that you don't have to wait for the physical package to arrive to claim you are certified.
Once your endorsement is approved you'll be told you are certified, and you can then update your resume/LinkedIn profile, share out your digital badge, etc.
But, yeah, the wait is pretty long. When I did this 4-5 years ago, I got an email that I passed within a couple of days of passing the exam at the test center. Endorsement took about 4 weeks (about the same as ISACA). At which point I could claim I was certified, etc. Electronic badge came a little later as I'm not sure they were doing that when I was certified, but think they came about 6 months later.
Not sure how long it took to get my physical certificate. Nor when I did my 3 year renewal when the new package arrived for me.
