Membership 2 - Display expiry date.

ms_subscription.php

<?php
function wpmu_display_membership_expiry_date($atts){

	$returner = '';

	$args = shortcode_atts( array('user_id' => '',
							'membership' => ''
							), $atts);

	extract($args);

	// only run if M2 is active
	if ( defined( 'MS_PLUGIN' ) ){
	 	$api = ms_api();
		$subscription = $api->get_subscription($user_id, $membership);
		if($subscription){

			if( $subscription->expire_date )
				$returner = MS_Helper_Period::format_date( $subscription->expire_date );
			else
				$returner = 'Never';
		}else{
			$returner = 'specify correct user id or membership id/slug/name';
		}

		return $returner;	
	}

}
add_shortcode('show_ms_expiry_date','wpmu_display_membership_expiry_date', 10);