On God Valley ,
Did Saturn summon rest of the Gorosei like in this arc to deal with Prime Rocks pirates & Prime Roger pirates ?
Did Saturn & other probably summoned Gorosei fight Prime Xebec , Rocks's crew , Prime Roger , Roger's crew ?
We will get full picture of exactly how everything transpired on God Valley the next time God Valley flashback is drawn by Oda..which i think must be when SHs will be on BB's HQ Hachinosu island where Rocks formed . BB might be the person who inherited Xebec's will probably.