It’s expected to be focused on the iPad which hasn't had a refresh in a while. 

Predictions:

- OLED screens, the tech that the ultra-high quality iPhone screen has had for five years now. 
- A larger iPad Air - 12.9" version, like the Pro range. 
- A new magic keyboard design, which is metal and feels more laptop like. 
- New ways to interact with the Pencil, possibly adding new squeezing features and haptic feedback.  
 
To me, it further complicates the iPad vs MacbookAir purchase decision, unless something changes at this event. An iPad isn't quite a laptop, but with the M2 chip also expecting to be announced, maybe the convergence between iPadOS and MacOS is closer?

One noticeable change: the time slot. The 'Scary Fast' event was in the early evening for NYC, this one is at 10am, 7am PT, which means Asia will be able to see it before they go to bed. Is it partly because Apple needs to boost sales in China? Maybe! Huawai is seeing massive growth in the premium phone market in China.

iPad sales are also not up to Wall Street expectations. Unlike phones which get hammered every day, iPads tend to have a longer life and so need a good sales pitch to get folks to upgrade. 
Also, there is still no in-person crowd. Seems Apple is sticking with its pre-recorded format. 

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