The Deja Vu and Jamais Vu missions, which were exclusive content for the PlayStation and Xbox versions of MGSV Ground Zeroes respectively, will be made available for the other systems as well. This has been announced during Episode 6 of the Japanese Kojima Station.
The release date for the missions is May 1st. What’s better is that the missions will be free of charge:
Source: Kojima Station Episode 6