The ability to use custom fields, not just standard ones is very useful when it comes time create automated reports that need more information than what's in Sharepoint or Dynamics 365! Also having access via API makes building integrations with other systems much easier as well!! Nothing specific at this point but I would like them add an option where you can have multiple pages per form instead of only 1 page which really cuts down your screen space if there are many options available (like we do). It could be helpful from mobile devices too so people don't miss out by using tablets/phones over laptops while completing these types o workflows etc..