>>13015847When the french branch of the pokemon website updated it, they made a mistake in the paragraph about exclusive pokemon. Some name, which never appeared until now, was used in place of Skrelp's one. Since the name relates to algae (but is clearly different from Skrelp's french name and couldn't be a typo), it is obvious Skrelp will get an evolution.
The name in question is Kravarech. Skrelp's french name is Venalgue. Just google Kravarech, you should find various articles that mention the original text (it's corrected on the official website now).
Here you go. Can't do much for Clauncher, though.