Figure out the date of the final recurring event

$final_date = '';

foreach ( get_post_meta( get_the_ID(), '_EventStartDate', false ) as $instance_date )
    $final_date = $instance_date > $final_date ? $instance_date : $final_date;

$final_date = date( get_option('date_format'), strtotime($final_date) );
echo "<p> The last event takes place on $final_date. </p>";