You could disable the built in notification and implement a custom form submission handler to generate your own email and pull in other data based on custom logic. There is a guid on the ResponseSet object that you could use or include in the email or your own identifier that you pull from your CRM or generate. If the user is authenticated at the time of submitting the form the UserGuid is also attached to the ResponseSet and relates to the UserGuid in the mp_Users table.
I am also looking into ways that we could pre-populate forms based on the user as a possible future enhancement for Form Wizard Pro.
Hope that helps,