What are the implications of altering our custom Purchase Order REV logic?

We currently use a customized Purchase Order revision logic.  The seeded Promised Date field is used to tell the users when the delivery date of an item while a Flex Field titled Actual Delivery Date holds the actual contract date with the supplier. 

The constant changing of the seeded Promised Date field causes the REV of the Purchase Order to roll which causes another round of approvals and also drives an increase in REV numbers. 

Will seeded functions be affected in any way if we modify our custom Purchase Order REV logic to NOT roll the REV for a Promised Date change?