\aftergroup executes the next token after the end of the current group. Is there a variant, \Vaftergroup{\some\tokens\a\b} that would put \some\tokens\a\b after the current group ends? Of course, one can do \aftergroup\some\aftergroup\tokens\aftergroup\a\aftergroup\b, but when the list is longer, it becomes messy.
This is motivated by an answer that works but is ugly.