Expense custom forms updated to new experience?

Does anyone know if Workfront plans to update the expense custom forms to the new experience? When adding an expense and using the option to add a custom form to it, I only can see the legacy form style. We have created new expense forms with new features such as the External Lookup fields, but the legacy form does not appear to include these. When will Workfront update this to align with the current formatting/style standards?