MFBU: Multi-Functional Black Hole Storage Unit
I feel and mainly on servers it would be a good time to add a new Power Storage Unit. Something epic something big and great for populated servers so you don't have 50 MFU's everywhere. Black Hole Storage Unit would store say 50-100Mil EU. Would use a lot of diamonds and I mean diamonds after diamonds haha.
Maybe something like Requires 6 MFSU's if you like to go crazy though most people might just end up making MFSU's and keeping them that way if its not rewarding enough. All I can say its time for a new storage device!