your money, you can do whatever you want. just mentioned that it's "wasted money".
maximus iX code is exactly the same MB just without the waterblocks on it.
Motherboard don't have GPU, the integrated GPU is CPU feature. and even your current MB have the same features except may be the a single M.2 slot.
anyway, investing in TOP tire MB of the deprecated platform while planning to upgrade to GTX 1060 and having 8GB?
that MB is suited for 10K build with couple of GTX 1080Ti at least.
Don't get me wrong, not bashing or something, just trying to understand why would you do such irrational thing.
Really, sell your PC and get 160-200$ Z370 MB + 8600K or 8700K with 16GB of RAM instead of your plan.