I think it'd be nice to have an "automatic" update feature(either built-in or through plugin) for plugin management. When the Jedit finishes loading, a message box shows up asking user if he/she would like to update their plugin automatically without going through "Plugin Management=>Update" menu everytime.

Oh yeah, it'd be even better if we could turn that auto update on and off through "Global Options" for some people can't afford to have JEdit checking for update site everytime JEdit loads.