According to an article by Gematsu, FFVII Remake will run on Unreal Engine 4.
“We realize how special Final Fantasy VII is to fans, and we place our trust in Unreal Engine 4 technology and tools to help deliver this long-awaited remake, crafted for modern platforms,” producer Yoshinori Kitase said. “Working with the team at Epic and having their support throughout this process was invaluable and we’re excited to bring the product of that collaboration to long-time fans and newcomers to the series."
According to an article by Gematsu, FFVII Remake will run on Unreal Engine 4.
“We realize how special Final Fantasy VII is to fans, and we place our trust in Unreal Engine 4 technology and tools to help deliver this long-awaited remake, crafted for modern platforms,” producer Yoshinori Kitase said. “Working with the team at Epic and having their support throughout this process was invaluable and we’re excited to bring the product of that collaboration to long-time fans and newcomers to the series."
http://gematsu.com/2015/12/final-fantasy-vii-remake-uses-unreal-engine-4
If that's not enough proof, Epic Games has announced it as well.
https://www.unrealengine.com/news/final-fantasy-vii-remake-built-with-ue4
Edited by Rocketboy227