I don't think they will, it would be suicide (their business model relies on the fact that they can collect data from you. It's free because you are the product !).

Yet, it's still useful to keep in mind that they can disable your account at any time (with _all_ associated services i.e. your email, contact list, youtube history, Drive documents, etc) without any appeal (e.g. because AI would have triggered supposed misconduct from you or because AI may think you are not the genuine account owner !). Because of that, it's always good practice to periodically backup your data (e.g. using takeout.google.com, noting that the export from GMail is half-broken with non-unicode characters - which is why I backup it with IMAP...).