The 2009 edition is longer available from LP. Not even as a digital version. 😦
I highly doubt it will ever be updated.
You can still find used versions on Amazon at high cost.
I searched until I found one in a used book store. I’ll hang on to it. There’s nothing better for the region, in my opinion.
A 2015 Spanish language guidebook is closest – Trekking por Chile by Compass, the map company.
If you only need to see some of the Lonely Planet guide, check the version archived on Google Books.
besthike.com 
PDF version of Lonely Planet Trekking in the Patagonian Andes can be found as torrent in the web. just google it (-:
Thanks dude.
Any idea where? I can’t seem to find it anywhere…:(
I’ve seen used versions on Amazon for hundreds of dollars.
But it’s no longer available. If you can find a copy in a library, you could photocopy or scan.