User blog comment:Crimson Storm Mich/Future Units Preview v2/@comment-29654845-20170619013228/@comment-27362456-20170620204201

Roughly every month and a half, not even. Ever since they started releasing half batches every other week, we've been in close pursuit to JP. And legacy units are like every 3-5 weeks, depending on how generous GUMI decides to be and what content we get that month.