MWC 2015 is next week which means many companies are gearing up to announce their latest smartphones. Sony might be apart of that crowd of companies getting ready to announce new handsets.
Sony is rumored to announce the Xperia M4 Aqua which is expected to be a mid range smartphone with IP certification. The new Xperia handset will run Android Lollipop out of the box. Other details about the handset are not known yet.
Sony is also rumored to announce the Xperia Z4 Tablet next week alongside the Xperia M4 Aqua. News regarding both devices should arrive next week.