It is usually the same day for most of the books I get, Deadhouse Landing came out on audiobook on audible at the same time as the book( don’t know about other services since I only use audible), hopefully it releases the same day.

Edit: Ok did some quick googling and it is coming out the day, https://www.brillianceaudio.com/product?i=18033 so it will probably be on preorder  some time next year!(January)

I'm planning my first reread, and would like to start with Path to Ascendancy, moving on to Night of Knives, then to the main series.  
Kellanved's Reach is set for release on February 19th.  
  
From past experience, does anyone know how long till the audiobook is released?

How long does it usually take for the audiobook version to be released?