According to this post on the gog forums, which mentions a post I couldn't find with a superficial search that says Deponia 2 will release on gog.

There's also this post on the official deponia forums. Frankly, it sounds a whole lot less confident than I'd have liked.

So... uh... maybe we'll get a gog version.

Probably.

Eventually.

I guess...?

"Enjoy Deponia, be aware that later this year in november there will be the second part Chaos on Deponia also on GOG."
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"Deponia 2 will be in english, german and russian here. For The Whispered World we can not offer the german version here.
But stay tuned for many additional releases from our back catalogue and our future titles."

Hello,

I have never purchased a PC game online until today because I really liked what i saw from the first game so I just pre-ordered the sequel. My question is will I have to choose the right system to download the game on to(mac or PC) or will it recognize that I'm on a mac and automatically give me the mac version?

Thanks, sorry if the question is confusing

There will be a tab for you to choose a Windows or Mac installer if available for Mac.