It is natural that the studio uses this as an opportunity to zoom in on its plan, including limited permission for Valentine's Day and the official start of its first season (and paid battle passage) in March. You can have something to expect when the initial rush ends, especially if the solo and duet modes work out.
The company did not mention why it thought Apex did well, but it has many advantages. It is based on Titanfall series of commonly accepted combat mechanics, complemented by expert players. Of course, its marketing has helped, because the combination of launching and support for top scenes (such as Shroud and Dr DisRespect) has ensured that everyone can see how well they play. And, of course, this is a real free play game where you only need to spend money to quickly write symbols and items. Respawn's challenge now is to keep that momentum and withstand the inevitable responses of its competitors