The tower catch will be a highlight but technically just as important will be the second full reentry of the upper stage. Last time we had the amazing 'little flap that could' that was basically ripped apart put just valiantly continued to do its job. Musk said they had solutions for this in place, will be interesting to see how the hinge holds up. This could be a came changing flight test.

Because the rocket goes back to launch sites, lots of people will have really good cameras set up, lots of views. We will see this catch attempt with a lot of detail.