Scott posted a Producers Blog yesterday on June 24, 2017 You can read it here: https://secretworldlegends.com/news/producers-blog-head-start/

Important information in there is that "As an additional bonus for the TSW Legacy Transfer system we will be giving out 2 free character slots for everyone that links their SWL account to a valid TSW account.  This bonus will only be available during the Legacy Transfer window (ends in August)."