Honestly, it wouldn't make sense given how many Lexcorp signs we had in the film and how his character has been constantly brought up by Snyder and Goyer whenever they talked about the sequel. In fact, Lex and Bruce are the only DC characters that they've really talked about in name whenever mentioning the larger DC Universe that exists within MOS's world.
Plus, they'll need someone in charge that'll be responsible for manipulating the events that forces Superman and Batman to end up being at odds with each other.