For simplicity of discussion, can you publish a new V_3_0_0_4 version of your application keeping the same contents as V_3_0_0_2 and let your users get it ?
On another note if you are familiar with signing of manifests, you can take you App_V_3_0_0_2.Application rename ittoApp.Applicationand replace the App.Application (which would be currently V_3_0_0_3). Then open the App.Application Change the assemblyIdentity version to V_3_0_0_4. re-sign it. In this case the users will still get an update becasuse the deployment version is updated but they will get the bits of your V_3_0_0_2.
Hope you got the idea
-Thanks
Sreekanth