What is the extra functionality of Autocomplete form field vs. Lookup?

A lot of the code is copy pasted between these two classes - is it ok to deprecate Autocomplete or share the code by implementing Lookup by extending Autocomplete?

Compare these two files:

• https://github.com/atk4/ui/blob/develop/src/FormField/Lookup.php
• https://github.com/atk4/ui/blob/develop/src/FormField/AutoComplete.php