After weeks of speculation, we’re finally getting some concrete information on Apex Legends’ first battle pass.  Respawn Entertainment announced early this afternoon that the Season 1 battle pass – Wild Frontier — will drop tomorrow, March 19th. 
Wild Frontier will launch at 1pm EST (10am PST), and will be priced at 950 Apex Coins, or $9.50.

Source: Hot Hardware – Apex Legends Wild Frontier Season 1 Battle Pass Launch Date And Pricing Announced