Lookup Relationship Field Limit Increase

With all the changes to the Custom Objects over the last couple of years (placeholders are an AWESOME addition), we are finding that we want to use Custom Objects for a lot more things, but we cannot because we are at our limit for 10 lookup relationship fields on our ticket form. Increasing this limit could open up a world of possibilities for us. Given the increased utility of custom objects, are there any plans to raise the lookup relationship limits so that we can take fuller advantage of these great features?