If it goes on sale again and I miss the opportunity, I shall punish myself by listening to that for the full 10 hours. Just tested my resilience and after 5 minutes of this, I already gave up.

Let's see...
My wishlist says...

Outcast 1.1
Sunless Sea (50-75% off)
Telepathy Tactics (50-75% off)
Anno 1602 AD (Well, the other two games released at the same time are included in the sale...)

Star Trek bundle
GOG's own games bundle

Following from the Steam sale:
Victor Vran (50-75% off).

Everything else on my wishlist. But if wishes were horses, we'd all have unicorns. ;)

Divinity Original Sin EE would be great.
A liitle bit more realistic:
HUMAN RESOURCE MACHINE
Her Story
RENOWNED EXPLORERS: INTERNATIONAL SOCIETY
Transistor
The Book of Unwritten Tales 2

Fallout 3 and Fallout New Vegas. I was expecting them to appear at the Halloween Weekend Sale beacause of the scary ghouls. At least since Fallout 4 will be published on 10th of November, it would be a good idea to put them on sale here in order to push Fallout 4 sales, wouldn't it?

I'm hoping to see a sale on:

Odallus: The Dark Call
Rebel Galaxy
Starpoint Gemini 2
Sublevel Zero

I've got my fingers crossed, as I always do, for some big new releases. Maybe some modern games from Bethesda, finally some more stuff from Warner Brothers (such as more Lego games), or even a new publisher. Something big and exciting!

I hope these show up some time as well
Kerbal Space Program
Rebel Galaxy

As much as I love good old games, I have to agree with others' it would be great to see something new, great and DRM free by a great publisher.

Fallout 4! :)

Aside from that, some nice classics like Discworld, McGee's Alice and a few lost others.

This one, I hope it arrives here during the sale. Also, am I right in assuming that Paradox Interactive now has control over its release?

The Steam page at least still says "published by Activision". So this is probably gonna take a while. >_>

@ thread: Come on GOG, Star Trek and Star Wars bundles! You know you want to! @_@

Unless, of course, you're saving those for the Holiday sale.

My wish from the sale is simple: that nothing tempting comes up.

Metro Redux

Sunless Sea.
And perhaps Tropico 4 at least 70% off, but I suppose it may be in bundle.