Here are the normally expected time frames...
Application review: 24 - 48 hours (usually 24 during the week)
Age verified & Contract returned: 24 - 48 hours (usually 24 during the week)
Contract signed & Final steps completed (waiting on YouTube partnership): 7 - 14 days (sometimes shorter and sometimes longer... this is where YouTube itself is actually reviewing your channel before giving final approval)
However, we want to be totally transparent with anyone waiting on responses at the moment...
If you didn't already hear back today, then you'll likely have to sit tight until past the weekend and holiday break. The review staff will not be working those periods, so it will likely be later next week when you hear back on wherever you currently are in the process. It simply comes down to unfortunate timing. :/ (Important to note this would likely happen with any network at the moment.)
The partnership process and waiting can be frustrating as it is, so we apologize for the extra few days added on. Just have to try to stay patient on it.
Feel free to PM us if you have any questions in the meantime!
Sincerely,
Creator X