Although it's not mentioned in TDP's Release Notes, v4.3 was tested connected to 12c OBIEE servers, and it works.
But, one has to add "-ws" to the URL:
http://[YourBIserver]/analytics-ws/saw.dll
As in the "Enabling the Online Catalog Manager to Connect" section in the Oracle's document:
"New Features in Oracle Business Intelligence Security"
It says:
"the Oracle Business Intelligence URL http://hostname:port_number/analytics becomes protected, and you must point the online Catalog Manager to the URL http://hostname:port_number/analytics-ws instead. "