Filter Past Events from View All Occurences

add_filter('tribe_events_pre_get_posts', 'filter_tribe_all_occurences', 100);

function filter_tribe_all_occurences ($wp_query) {

    $te = TribeEvents::instance();

    if($te->displaying == 'all') {

        $new_meta = array();
        $today = new DateTime();

        // Join with existing meta_query
        if(is_array($wp_query->meta_query))
            $new_meta = $wp_query->meta_query;

        // Add new meta_query, select events ending from now forward
        $new_meta[] = array(
            'key' => '_EventEndDate',
            'type' => 'DATETIME',
            'compare' => '>=',
            'value' => $today->format('Y-m-d H:i:s')
        );

        $wp_query->set( 'meta_query', $new_meta );
    }

    return $wp_query;
}