Scientist as prompter? Yes it seems fairly likely. But to what extent and how quickly will it happen? Surely scientists will still be able to at least give an outline of "their" work even in the future? Maybe?
Otherwise maybe we it will be a sort of inversion of control, where the language model is the supervisor, and the humans in the loop are more like research assistants doing the dirty work? Instead of a human wearing an exoskeleton, an AI wearing a biological exoskeleton? But this can only be a temporary state of affairs as we won't be needed for that forever.
A scientific project without human involvement? If a paper is published in a journal and no human wrote it and no human read it, is it really science? Does it really advance knowledge. Probably?