Even though the VR app is just a kitchen demo, IKEA has had Augmented Reality to place furniture in your own home in their standard catalog app for a couple years now https://www.youtube.com/watch?v=vDNzTasuYEw So VR is the next step

Probably something like the Hololens is the next step for that, and Hololens is amazing, so seeing the furniture in your room without having to wave a phone around is going to change buying and decorating

VR is more a different direction, it's hard to take your house and represent it in VR for you to furnish. You could use something like the Matterport, but even then it's an hour or two before you can use it in VR.

It's a start. I already have my apartment mocked up in Sketchup, and I imagine it's not that hard to import that. It'll be hack-y at first, but it seems like a very achievable target for professional interior designers, etc. The tech could easily trickle down.