WARFRAME - #Warframe continues its path towards Cross Play, Cross Save, and mobile development! We've spent the last year exploring Cross Play and performing internal testing, with community testing coming soon. Stay
State of Warframe Cross Save & Crossplay - Developer Comments & History - YouTube
No Cross-Play for Warframe Anytime Soon Says Creative Director Steve Sinclair - mxdwn Games
Warframe will get Cross Play and Cross Save, actually in development : r/xboxone