The When row under the add field on To-dos and on a List starts on the view you are on, so pressing Enter adds the To-do there as before. Choose Today, Tomorrow, Next week, Someday, No date or Pick a date… first to send it somewhere else. After each To-do, the row goes back to the view's own choice.
A title can now also end with "someday", "no date" or "next week", and a day at the end of the title shows its choice in the row as you type.