Вот шаблон для своих типов записей с пагинацией. Если в пагинации убрать get_previous_posts_link а в get_next_posts_link написать 'Ещё' - будет то что вам нужно.
<?php
/*
Template Name: Simple post 2 Loop page
*/
?>
<?php get_header(); ?>
<?php
if ( get_query_var('paged') ) {
$paged = get_query_var('paged');
} elseif ( get_query_var('page') ) { // 'page' is used instead of 'paged' on Static Front Page
$paged = get_query_var('page');
} else {
$paged = 1;
}
$custom_query_args = array(
'post_type' => 'post',
'posts_per_page' => get_option('posts_per_page'),
'paged' => $paged,
'post_status' => 'publish',
'ignore_sticky_posts' => true,
//'category_name' => 'custom-cat',
'order' => 'DESC', // 'ASC'
'orderby' => 'date' // modified | title | name | ID | rand
);
$custom_query = new WP_Query( $custom_query_args );
if ( $custom_query->have_posts() ) :
while( $custom_query->have_posts() ) : $custom_query->the_post(); ?>
<article <?php post_class(); ?>>
<h3><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></h3>
<small><?php the_time('F jS, Y') ?> by <?php the_author_posts_link() ?></small>
<div><?php the_excerpt(); ?></div>
</article>
<?php
endwhile;
?>
<?php if ($custom_query->max_num_pages > 1) : // custom pagination ?>
<?php
$orig_query = $wp_query; // fix for pagination to work
$wp_query = $custom_query;
?>
<nav class="prev-next-posts">
<div class="prev-posts-link">
<?php echo get_next_posts_link( 'Older Entries', $custom_query->max_num_pages ); ?>
</div>
<div class="next-posts-link">
<?php echo get_previous_posts_link( 'Newer Entries' ); ?>
</div>
</nav>
<?php
$wp_query = $orig_query; // fix for pagination to work
?>
<?php endif; ?>
<?php
wp_reset_postdata(); // reset the query
else:
echo '<p>'.__('Sorry, no posts matched your criteria.').'</p>';
endif;
?>
<?php get_footer(); ?>