As reported by [arstechnica]:

The little quad copter on Mars was due for a flight test a week ago, but due to an issue when attempting a pre-flight test has been pushed back. During this time they've been testing and uploading a software update, as all systems appear to be in good health, but weren't communicating with each other properly. Since then they have completed a full spin up test, setting up a historic attempt where it will try to hover for approximately 20 to 30 seconds in the air before landing, with aims to have missions eventually up to 300 meters. However, all of this is highly experimental, there's no way of knowing if Ingenuity will even be able to get off the ground, so here's hoping.

Given the transit time for sending and receiving instructions, NASA will be streaming the data starting at 6:15am ET Monday. You can watch their livestream [here], which starts in 27 hours as of this post.