Aaryn Flynn is apparently playing the game at the moment. The general manager of Bioware latest Tweet revealed that Mass Effect 4 is beautiful, ambitious, familiar and fun.
It seems that the game developers have been testing the game for months now. That is the reason for the long stiff silence on the development progress for Mass Effect 4. After all, it is a huge game and it requires a lot of time to complete. On top of that, the developers have to stay sharp and keep their eyes open for any issues when playing the game.
There is a lot of potential for Mass Effect 4 as it will be among the first few gaming titles to run on the Frostbite 3 game engine.
At the current rate of progress, there is a slight bit of chance for Mass Effect 4 to debut this year. Of course, the ideal release will be in 2015.