I did not mean to say that Ep. 4 is coming out soon, I do not know for sure. However, with all the recent sneak peeks Mech Lightspark has given us, it is very evident much progress has been made. Some people in the Beta Testing topic have even hinted that they knew some of these things Mech revealed.
That said, this is the most I have EVER hoped that Ep. 4 will be coming soon, even if it is not confirmed.