I see from [http://en.wikivoyage.org/wiki/Wikivoyage:Accommodation_listings The Accomodations Listing suggested style you want people to continue to use the wikitravel tags. But I do not see any tools to automate the process.
If you look at the Add and Edit Listing Feature listing like those that can be found [http://wikitravel.org/en/Wikitravel:Small_city_article_template#Sleep here] and [http://wikitravel.org/en/Trat#Sleep here]? You'll see there is a tool to edit these tag.
This tags is extremely useful to organize data and make quick edits. For example, I have fixed many incorrect phone numbers and addresses using this helpful tool. Please consider adding this feature the MediaWiki.