Transifex Native plan is to be able to support migrations from existing localization methods to the Transifex Native one. At the moment there is a Django code migration script available offering extensive functionality into migrating from the Django gettext way. Using this script we are migrating code parts of Transifex at a rate of 600phrases/day.
Our intention is to support any additional efforts triggered internally or by the community on offering code migration scripts for more language frameworks as they are made available.