Ubisoft Connect seems to have prematurely posted XDefiant Season 1 info, and it mentions Rainbow Six Siege and various abilities.
The XDefiant server locations have been revealed, with servers for Middle-East confirmed, along with multiple Asia servers.
The XDefiant preload launch times have been revealed along with the road to launch! Matchnaking factors explained in detail.
XDefiant's Libertad class has sufficient counters according to Ubisoft, and they also confirm there are no weapon changes coming at launch.