The lack of backwards compatibility between the Microsoft Xbox 360 and Xbox One isn't lost among Microsoft designers, and will be something that could lead to a solution later down the road.
"Back compat is always a hot topic at the turn of a generation, and I get why, especially on [Xbox 360] so many people bought so much digital content and it means that a lot of us, we're holding on to our 360s," said Phil Spencer, head of the Microsoft Xbox division, in a recent interview. "I get the question. I totally respect the question. There's nothing I can say about it right now, but I'll just say 'I hear you.' I definitely hear you and I'll continue to try to work to build something that can help people out."
The problem is probably less significant for Sony with its PlayStation 3 and PlayStation 4 owners - as the Japanese console dominates sales charts - and allows gamers to play older titles using PlayStation Now. The Wii U supports backwards compatibility but hasn't been as popular among hardcore gamers.