I think the source comes close to contradicting that without being explicit: 'GIMP 2.10’s core will be 100% ported to GEGL, and all of the legacy pixel fiddlin

I think the source comes close to contradicting that without being explicit: 'GIMP 2.10’s core will be 100% ported to GEGL, and all of the legacy pixel fiddling API for plug-ins is going to be deprecated. Once the core is completely ported, it will be a minor effort to simply “switch on” high bit depths and whatever color models we’d like to see. Oh, and already now, instead of removing indexed mode (as originally planned), we accidentally promoted indexed images to first class citizens that can be painted on, and even color corrected, just like any other image. The code doing so doesn’t even notice because GEGL and Babl transparently handle the pixel conversion magic.'