Based on using a 10.5" iPad Pro since 2017, I believe what this slide is saying is that all of these things are new to the volume priced iPad, which after all just got an upgrade to the 3 year old A10.
On my Pro, I've had most of the stuff on this slide from the beginning. Not sure about custom fonts as I've never looked into it, and I think native external storage support is new in the upcoming OS (though it was achievable with third-party apps since iOS 11).
But yeah, bottom line of this slide is that these formerly pro-only features are now in the $329 product.
The 7th Gen is still lacking the quad speaker setup, ProMotion 120Hz refresh rate, True Tone and does not feature a fully laminated screen. At least, it has retained the 3.5mm audio jack. Although, the 10.5" (2017) iPad Pro will remain the superior choice for those willing to hunt it down; the new entry level model has a very attractive price tag.
On my Pro, I've had most of the stuff on this slide from the beginning. Not sure about custom fonts as I've never looked into it, and I think native external storage support is new in the upcoming OS (though it was achievable with third-party apps since iOS 11).
But yeah, bottom line of this slide is that these formerly pro-only features are now in the $329 product.