Definitely, though the semantics of field mappings often only exist in a user's head, so will need to be explicitly defined.
English prompts will no doubt be a big part of Plato, though. We're still figuring out exactly where the line is between English and traditional UIs. Have you read any good analysis on the subject? Here's one that explores the limits of LLMs: https://magrawala.substack.com/p/unpredictable-black-boxes-a...