I found a website with the information that microsoft is planning to let an Austrian company called Mokka create an online game from Zoo Tycoon 1.
If you see text at the bottum of the site you see that the client is microsoft and the project is an online game.
If you look at the screenshot you can also see that it is a cöorparation with an Austrian zoo
Tiergarten Schönbrunn. Edit : this is the oldest zoo in the world. I have made a post with this zoo lots of months ago.
Here is the link
http://www.mokka.at/74.0.htmlAnd 2 pics i found on the web