The early launch of Samsung Galaxy S7 is confirmed By AT&T tests, according to Evan Blass @evleaks on Twitter. He has suggested that AT&T T is already testing both Galaxy S7 variants (SM-G930A and -G935A), adding weight to rumors of an early- to mid-1Q16 release.
AT&T’s Samsung Galaxy S7 with model number SM-G930A will likely turn out to be the Samsung Galaxy S7 while the SM-G935A model will likely turn out to be the Samsung Galaxy S7 Edge.
We can expect to see the launch of Samsung Galaxy S7 and Galaxy S7 Edge at CES next January or in early March at MWC in Barcelona. Samsung released the Galaxy S6 and Galaxy S6 Edge at MWC last year, so we expect to see the Galaxy S7 and Galaxy S7 Edge at the same again this year.