Les derniers posts au lieu du dernier post (php & wordpress)

<?php get_template_part('templates/page', 'header'); ?>

<?php if (!have_posts()) : ?>
  <div class="alert alert-warning">
    <?php _e('Sorry, no results were found.', 'roots'); ?>
  </div>
  <?php get_search_form(); ?>
<?php endif; ?>

<?php while (have_posts()) : the_post(); ?>
  <?php get_template_part('templates/content', get_post_format()); ?>
<?php endwhile; ?>

<?php if ($wp_query->max_num_pages > 1) : ?>
  <nav class="post-nav">
    <ul class="pager">
      <li class="previous"><?php next_posts_link(__('&larr; Older posts', 'roots')); ?></li>
      <li class="next"><?php previous_posts_link(__('Newer posts &rarr;', 'roots')); ?></li>
    </ul>
  </nav>
<?php endif; ?>

<?php /* Gestion blog */?>
	      	<?php
				$post_694 = get_post(694); 
				$title = $post_694->post_title;
			?>
			<div class="blogTitle linkT hideDiv">
				<?php echo $title;?>
			</div>
			
			<?php
			$args = array( 'posts_per_page' => 1 );
			
			$myposts = get_posts( $args );
			foreach ( $myposts as $post ) : setup_postdata( $post ); ?>
					<a href="<?php the_permalink(); ?>" target="blank">
						<?php echo get_the_post_thumbnail($post_694->ID, 'full', array( 'class' => 'blogIMG actionIMG' ));?>
					</a>
			<?php endforeach; 
			wp_reset_postdata();?>