Not a good choice, stick with what you currently have, it'll perform extremely closely with Skylake, within 10%, there's no point upgrading from what you currently have.
Also DDR4 provides no substantial benefits over DDR3 for gaming.
Get a new graphics card, the 950 falls behind by quite a bit.
http://pcpartpicker.com/product/ph38TW/evga-geforce-gtx-1070-8gb-sc-gaming-video-card-08g-p4-5173-kr