This conversation has been merged. Please reference the main conversation: Lightroom: Relative Develop Presets would save the day!
As a workaround, I export the corrected images as 16bit TIFF and reimport them into Lightroom and then apply the appropriate filters. However, this steps requires huge amounts of disk space, time and CPU load.
Thus, I suggest to implement some kind of image "lock" so that presets applied to locked images will be applied on top of existing adjustments. Any other way to add presets relatively instead of absolutely is welcome too.