I thought you were kidding, I gave it a quick search but didn't get anything solid. I did ran across that German page but didn't read it thoroughly since the translation is kinda fuzzy.
It's good to know that Maxis is still around. I currently have SC4 installed but I hardly play it XD I was picking between Generals & SC4 back then and I ended up with SC4 because I couldn't decide which among the 3 box art I'd pick from Generals back then >.<
Aw man, after watching about the Digital Deluxe version of Mass Effect 3 I'd certainly wish to have a physical copy of that version too (SimCity Digital Deluxe). I'd be happy to pay for the Deluxe contents but only if its distributed via disc.