What about GDC and LDC after DMD becomes D?

[Shriramana Sharma via Digitalmars-d]

Once the front end of DMD becomes fully D, I read that the backend
will also become D, but then what will happen to GDC and LDC whose
backends are C++ IIUC?

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Shriramana Sharma ஶ்ரீரமணஶர்மா श्रीरमणशर्मा