Call any part of the ground what you want if it brings in extra revenue. But, please, leave the name of the Demport alone. Iconic in name and nature. Stood there as boy and man (well sit now).
As for renaming the whole ground - well, you can call it what you want. it'll still be known as Home Park to locals. Saying that, this generation will always know it as Home Park, but what about future generations of greens? Won't they gradually call it it's new name? That'll be sad!