As you type a command in ipython or xonsh, the prompt_toolkit suggest a possible completion from history, but when you use vi mode and switch to navigation, that suggestion immediately disappears.
It would be nice to be able to navigate in the suggestion too, because after mapping ESC to jk your fingers never will need to leave the letter keys to reach for the arrows if you want to accept a suggestion, like it happens in vi mode of the fish shell.
I've searched how to keep suggestions in navigation mode in google, but it appears that it is not possible.