Template override, simple override template file of page, based on page ID

tempalte_override.php

<?php

add_filter( 'template_include', 'archives_overrides', 99 );
function archives_overrides( $template ) {
	global $post;
	if(!$post){		return $template; 	}
	if ( $post->ID  == get_archive_for_projects() ) {
		$new_template = locate_template( array( 'template-projects.php' ) );
		if ( '' != $new_template ) { return $new_template ; }
  }
	return $template;
}