The future denotes an action that will take place at some future time:
λήψεται μισθὸν τάλαντον
a. The action is future according to the opinion, expectation, hope, fear, or purpose of the speaker or the agent.
b. The action of the future is either continuative (like the present) or, like that of the aorist, expresses simple attainment. Thus πείσω means
Herbert Weir Smyth [n.d.], A Greek Grammar for Colleges; Machine readable text [info] [word count] [Smyth].