Door opens.
Some fans have asked Capcom to remove the loading door animations in the Resident Evil 0 HD Remaster, but it doesn't look like that request will be fulfilled, because Capcom seems focused on recreating the exact same experience from the original GameCube version.
All hope is not lost to remove those loading door animations in the Windows PC vesion of Resident Evil 0 HD Remaster, because a fan had created a mod for the Resident Evil HD Remaster that removed the loading door animations for that title. It works by changing a small part of that games code that triggers those animations.
That mod was released on the same day the Resident Evil HD Remaster was released (January 19, 2015).