Hi Edgar

You can call a workflow from forms and in that workflow update values in your forms process in real time. The workflow activity is oddly called "Set Business Process Variables" even though it has nothing to do with Business Processes. It actually sets Forms Process variables instead.

There is one catch, you must call workflow between user assignments. To keep the experience fluid use the option to show the next task immediately if the same user is assigned to it. Even assign the same form back to them if you would like. They will simply experience a flash and their data will be there.