The wcs23 promo code has been active since at least 3/2023 on Viking Sky (see my post #580 and #584) but at that time it was $5k more than present offer ($50k for boarding in Fort Lauderdale and $45k for boarding in LA). Viking has been rolling this code over every month and at some point they included Neptune in the offer and dropped the price by $5k ($45k for boarding in Fort Lauderdale and $40K for boarding in LA). I've encouraged all my friends to join us but haven"t convinced anyone yet.
It has always included all the usual wc perks (business class air, silver spirits, gratuities, luggage forward, visa, $1k excursion credit, $1k shipboard credit plus additional $1k for past Viking guests as well as free upgrade v2 to dv1 for example). The cruise critic wc roll calls for both Viking Neptune and Sky have been active and are a great source of information as well as Facebook posts for both. Also the cruise critic roll call for the completed wc for Viking Neptune is extremely informational since that one was two years in the making. It has 354 pages of posts and some are still contributing. If considering this may be the best offer but who knows as there is still time before December.