The spring 2020 free brushes by Kyle Webster are there!

With your subscription, you get more brushes as time goes by: here is how to get them from your brushes panel:

https://helpx.adobe.com/mobile-apps/how-to/kyles-brushes-in-sketch.html

You'll land on this page https://www.adobe.com/products/photoshop/brushes.html 

(it seems that the page is not localized yet, if you do not see the spring 2020 pack, remove the locale from the URL, as fr/ ) 

Kyle did a stream to explain those brushes: https://www.youtube.com/watch?v=mNPEbL57zZ0&feature=youtu.be