If it were available to purchase, I'd pre-order right now, but I'm not paying $15 for a three day online rental, especially since it will likely be available for purchase at a later date.
Theatre Fan3 said: "Has there been any indication that there will be blu ray release of this at some point down the road?"
Most of the recent proshots that have been released (Waitress, Prince of Egypt, Titanic, etc) are either on physical media or have a release forthcoming, so I don't see why this one wouldn't. The only recent ones I can think of that are still exclusive to streaming are Diana and Mr Saturday Night.