I'm sure Love will make it to Cleveland, it sounds like they are being careful during this process. All this talk of the trade possibly getting blocked is just the media trying to keep things interesting while they wait for the trade to actually happen.
Also, I hate when people bring up Stern nixing the CP3 trade as if he had no right to do it. At the time the New Orleans Hornets were league owned and David Stern was always their acting President. The Hornets General Manager pursued the trade with the Lakers, David Stern looked at the trade and didn't like what the Hornets were getting in return, and stopped it, simple as that.
It would be like Mitch Kupchak wanting to trade Steve Nash to Toronto for 5 bags of peanuts, but then Jim Buss nixes the trade because he believes Philadelphia would give us at least a dozen bags of peanuts for him.