Sorry, folks came across this yesterday, and I was foolishly believing someone else would have posted the update. Don't know the source being cited, but ALLPAR is generally pretty good w/ their specalation (sic).
http://www.allpar.com/cars/dodge/challenger.html
".....The always-reliable oh20 reported that the Challenger would start production in March 2008 with the SRT8 and 6.1 liter engine (LC series). The 2009 Challenger, to be built starting in July 2008, will include a 3.5 liter SXT with the 3.5 liter engine and four-speed automatic, R/T with the second-generation 5.7 Hemi, and the SRT-8. The 2010, to start production in July 2009 - with convertibles starting in early 2009 - will be similar but with SXT and R/T convertibles, and a new 6.4 liter High Output SRT8 option. Finally, the 2011 Challenger will include the 4.0 liter Phoenix engine instead of the 3.5 liter.
Features and options on the 2008-09 Challengers should be similar to the 2008 Chargers, except for a functional hood scoop, keyless ignition starting in 2009, Boston Acoustics audio, and the six-speed manual TREMEC transmission....."
Not 100% verifiable, but if you say it with confidence, anything (well almost anything) is believable.