maximus xi extreme

Hello all, I was looking into some good motherboards for water-cooling, but I couldn't seem to find many posts on this specific topic. Right now, I am planning a custom water cooling loop and to avoid some of the wires, I wanted the best motherboard for water-cooling, preferable with integrated...

I am looking to upgrade from a ROG Maximus VIII Extreme motherboard to the newer Maximus XI Extreme and also from the I7 6700K to the I7 8700k I was wondering if instead of buying a new closed loop water cooler could I just keep the H100 I GTX I already have. Would it fit the new socket mount...