There is enough room even with the 2nd 200mm but if your plans is to not use the drive bays you might want to take a look at the Level 20 XT. It is built off the same base chassis as the x9 but with some small changes. I have had the core x9 for some time now and plan to upgrade to the Level 20 XT.
It is estimated to be out Q3 of this year so its close.
But all in all the x9 is still a great case
http://computex2018.thermaltake.com/goods_key_chassis.html