https://www.pcgamer.com/apex-legends-octane/

Over the last 24 hours, new rumors and unconfirmed leaks about the next Apex Legends character have circulated from multiple sources, supporting prior rumors and even pointing, maybe, to an imminent release of a new character called Octane and/or the Apex Legends battle pass, which we're expecting sometime in March. Although EA has not announced anything officially, let's lay out the information we have so far.

Speculation about unreleased characters began weeks ago when dataminers uncovered a list of what appeared to be names of unreleased characters, spotting "Octane" among a list of others like "Crypto," "Jericho," "Rosie," and "Prophet." Strings uncovered from this data like "octane_stim_inject" and "octane_stim_release" suggested that Octane would be a character whose kit includes some kind of injection system, a trope not uncommon to games (and Batman villains) that seemed believable in Apex's sci-fi setting.