Board Thread:News and Announcements/@comment-93957-20190222195435/@comment-995426-20190223092941

I don't think having different publishers was ever necessarily a barrier to crossovers, nor was having the same publisher necessarily a facilitator of crossovers. Most of the various TMNT/Usagi crossovers have happened when they were under separate publishers, the only exception being the Shades of Green miniseries, which in fairness marked the beginning of the brief period TMNT and Usagi were both published by Mirage Studios.