Diablo III cross-play in the works says Blizzard

[Windows Central]

Diablo III may get a lot more social soon.
Diablo III is an incredibly popular action game which relies on higher difficulty levels and loot drops to keep players hooked. The title is available on numerous platforms like Xbox One and PlayStation 4, and it's coming to Nintendo Switch soon.
Cross-play is a growing trend in the gaming industry, and a lot of games nowadays support it. Now that even Sony has committed to opening up its PlayStation platform, it seems like other titles will also make use of the service.

Full story from the WindowsCentral blog...