*The next world (7,4)
I believe the answer is:
kingdom come
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">the next world</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for kingdom come that I've seen before include "The next world" , "eternity" .)