Sony sent out invites to their Mobile World Congress 2016 press event. Sony's press conference will be held Monday 22 February at 07.30 GMT / 08.30 CET. While that is the same day that Samsung is expected to announce their new Galaxy S7 series, it's at a different time of the day at least.
The smart money would bet that Sony will be showcasing their new Xperia Z6 line, but no actual details have been revealed yet. Of course it's possible Sony will reveal other tech as well. Stay tuned that day while we cover it.