Jordy,  The "appearance" won't change as the logic for the drac is based in the express chip. When adding the enterprise you are adding services to Drac (Remote Console, Dedicated NIC Port, etc), but not changing the logic that drives it.  Let me know if this helps. 
Hello,  Last week we recieved the "iDRAC 7 Enterprise" from Dell. When trying to install i got stuck, Dell manuals didn't really help me out so thats the reason i'm asking here.  For me it seems like the card isn't working? Nothing changed on the server, iDRAC/Lifecycle menu's are still the same, and saying "Basic Managment"  Pictures of instalation: [URL] [URL] 
R320 - iDRAC 7 Enterprise setup.