Collectively these series have been out of print in English (Macross Plus, Macross II) or simply never made it out of Japan officially (Macross Delta, Macross Frontier).
The announcement covers four Macross anime series: 1992’s Macross II: Lovers Again, 1994’s Macross Plus, 2008’s Macross Frontier, and 2016’s Macross Delta.
The original 1982 Superdimension Fortress Macross series is on some streaming platforms, such as Amazon Prime Video and Vudu.
The Macross Frontier series was redone as a movie duo in 2009 and 2011.