Microsoft has explained that Xbox One backwards compatibility for original Xbox titles would be "very challenging".
It's been months since Head of Xbox Phil Spencer teased the possibility of Xbox One backwards compatibility extending all the way back to the original Xbox.
Although we've not long had compatibility for Xbox 360 games, we're already thinking about future potential.
Microsoft has offered an update on the topic, straight from the mouth of Microsoft's Director of Program Management for Xbox, Mike Ybarra.
"We're not looking at original Xbox 1 games on Xbox One yet, and right now the focus is making more 360 games work, but I would say that nothing is impossible," said Ybarra to The Inner Circle Podcast.
"Certainly very challenging. Getting 360 to work was incredibly challenging, and really a multi-year engineering investment going all the way back to the original certainly would challenge the team."
"We're fortunate enough to have a great [backwards compatibility] engineering team, who loves to take on challenges, and I'm sure they would love that one as an opportunity to go look at."
There are currently just over 100 Xbox 360 games that work on the Xbox One via its new backwards compatibility emulator.
The feature was added as part of the major Windows 10 update for the Xbox One, which also introduced a brand new UI.