EA could sue over this.
How and Why?
2k Share would be using licensed logos and team colors on a large scale... enough that they'd be told "no." So the NFL customization would become a viral thing again like it has been with 2k5.
I really liked 2k5 and AT THE TIME there wasn't another football game like it, but it had it's flaws and I don't think is the GOAT of Console Sports games. It had great gameplay, but it was also flawed in some departments as well.