[SalesForce] Getting picklist values based on record type for a lightning component

Yes you will need to create a new page layout/record type if you want to give visibility to one group while hiding it from another group.

So you would have contact record type A: (original layout) then contact Record Type B: (customized layout)

You then can assign the correct layouts by record type for the profiles you wish to view the new picklist values

Phil, what you are doing in your code is adding available Picklist values to the LeadSource field. To actually assign combinations of Picklist values to different Lead RecordTypes, you will need to add these Picklist field values to the various Lead record types. To do this you will have to modify each Lead RecordType's valid Picklist values.

The chain for this is:

1. Get the Lead metadata object.
2. Get its RecordTypes property, a list of RecordType objects for the Lead object.
3. Find the appropriate RecordType from that list.
4. Get this RecordType's PicklistValues property, a list of RecordTypePicklistValue objects.
5. Modify the RecordTypePicklistValue records as appropriate, adding values to each RecordTypePicklistValue object's values property.

See the Metadata API Documentation for the RecordType object for more detail on the objects involved here.

Also, you may need to make the appropriate Lead RecordTypes available to different Profiles.