yes they are replacing it with the lancer platform to cut costs due to "poor" neon sales.
http://www.motortrend.com/future/spied/112_2004fvf/index1.html
"Chrysler and Mitsubishi jointly will create the next-generation Neon, due for the 2004 model year. Mitsubishi will take the engineering lead, while Chrysler will handle styling.
The next-generation Neon sedan will be based off the platform created for the 2002 Mitsubishi Lancer, the replacement for the Mirage. The Lancer went on sale this year.
The 2004 Neon likely will use Mitsubishi engines and transmissions."
-autonew.com
AND if you want to hear it from DC because they're the only ones you believe then...
"Product portfolio: cross-divisional segment strategy
In some vehicle segments the foundations have already been laid for the realization of synergies between the various products of the Group. For example, engineers from DaimlerChrysler and Mitsubishi Motors are working on a shared design concept for a small car in the so-called B-segment. The smart four-seater and the two Mitsubishi variants that are based on this platform are to be launched as early as 2004.
Another decision was taken to develop a common C-segment platform, with an estimated production volume of more than 500,000 vehicles per year, for the Chrysler Neon and the Mitsubishi Lancer and derived product variants.
Chrysler Group and MMC have also defined a third platform for full-sized sedans in the D-segment, that is, for the successors to their Stratus/Sebring and Galant models."
-DaimlerChrysler
read the rest of it here...
http://www.daimlerchrysler.com/index_e.htm?/company/corp_governance/bodies/eac/eac_e.htm
hope this answers your questions