itch.io

Was wondering, will patrons or people who have purchased the base game or DLCs on itch get codes or discounts when it's released on steam if they would like to install it there for the benefits of cloudsync and easier access? Or will it be something that you have to fully pay for again? Also, will the DLC be released as steam DLC and be incorporated into the base game once purchased, or will they be released as standalone games there as well?