There is a big discount right now on these titles on Steam, but I want to have these games on GOG instead. Is anything planned for the near future?

They featured in the winter sale and don't seem to be included in the current one, so it might take a while to get discounted again. However I would get the games here because then you also get the original versions, which imho with a couple of mods are even better than the enhanced editions.

Someone DOESN'T have the Infinity Engine games already?! Holy... wow.

Well I have the original retail copies, but haven't got to buying all the HD ones, not to mention that most of them had a bunch of issues at launch and I wanted to wait it out.