The New Frontiers mission selection slipped as a result of the Mars Science Laboratory. NASA wanted to understand the impact of MSL's cost overrun before preceding. From the dates in the notice, it appears that the schedule has slipped out about two months. That would put the selection of 2-3 candidate missions for further study around January of next year. Following Phase A studies of the candidate missions, selection of the mission to be flown would occur early in 2011. You can see a list of the acceptable mission targets in the poll on the right side of this blog. The draft announcement also describes the target missions.
"The National Aeronautics and Space Administration (NASA) Science Mission Directorate (SMD) is releasing a NASA Announcement of Opportunity (NNH09ZDA007O), New Frontiers 2009. NASA expects to select up to three New Frontiers mission proposals for a 10 month Phase A study. Following evaluation of Phase A reports, NASA expects to approve one New Frontiers mission to proceed into Phase B and subsequent mission phases. Launch is to occur no earlier than late CY 2016 and no later than CY 2018. The proposed missions must address the science objectives of one of the eight mission concepts identified in the National Research Council's 2007 report, "Opening New Frontiers in Space: Choices for the Next New Frontiers Announcement of Opportunity."
Europa Jupiter System Mission:
"The Europa Jupiter System Mission is first priority for the OuterPlanet Flagship Missions and involves the NASA Jupiter Europa Orbiter, ESA Jupiter Ganymede Orbiter, and possibly other elements, such as a JAXA Magnetospheric Orbiter. In addition to Europa and Ganymede,substantial Jupiter system science will be conducted.
"The science objectives were defined (http://opfm.jpl.nasa.gov/library/)
and the mission is in the next stage of development. Goals include
strengthening the science return, encouraging planetary community
involvement, and ensuring support by relevant space agencies. Workshops
are planned to assist potential instrument providers for addressing
radiation and planetary protection issues, with the first workshop
July 15-17 at the Applied Physics Laboratory, Maryland. In addition,
Jupiter-system sessions are planned for near-term meetings, such as
the European Planetary Science Conference this fall in Potsdam."