It's the Service Module for the Orion.
When this article was written in 2012 that was still being disputed internally, but it happened.
Five ATV flights pay off ESA's operating cost burden until 2017. With
the space station program extended until the end of the decade, ESA
now owes approximately 450 million euros, or about $600 million, to
meet its commitments between 2017 and 2020.
ESA managers are consulting the agency's member states on the
alternatives to pay their share of the station's operating costs.
Officials expect representatives of the member states to decide on an
option, or barter element, at a ministerial council meeting in
One option, tentatively favored by Germany but dismissed by Italian
and French space officials, is to sign an agreement with NASA to
supply a service module to the Orion crew capsule, or multipurpose
crew vehicle. The service module would be based on the ATV's