Yesterday, Wikimedia Deutschland has ordered five new servers, three of which will be added to the toolserver cluster. They will be delivered (hopefully) in two to three weeks, and will go online perhaps a week or two after that.
If you want to know what the new servers will be used for, have a look at our blog: http://journal.toolserver.org/entry/2009/04/29/faster-better-stronger/.
-- daniel
toolserver-l@lists.wikimedia.org