HTML Editor (as long as you don't use the file manager - file manager uses MySQL) and File Manipulation -> File Upload can be used with the Insert and Update behaviors of the MySQLi extension already.
add the HTML Editor field to you page, add the file file field and the Upload File behavior, then when configuring the MySQLi insert or update, select the binding for the HTML Editor field or the FIle upload -> Server File Name for the corresponding columns.
The first extension we will be upgrading is Data Assist, it is the most Database intensive, so will take some time to complete. I don't have an estimate for how long, but it will be at least a few months
