My guess is — and as wild guesses go, it’s pretty wild — that neither one will prevail per se, that high capacity media of other kinds, as well as various wireless technologies, will kick the hell out of both of them, leaving us with orphaned formats, as well as DVD (the latter playing the role of once-ubiquitous VHS, for low-budget distribution). Those media will be hard drives and flash memory.
Outside of Satillite downloading mush of the U.S. and the world is cerverly limited in reguard to Wireless technology. Many cable companies internet systems couldn't handle the bandwith such players would take up.
I am sure the Studios won't be too crazy about putting their products on recordable media. I also can see someone is working on a limited use, one time recording flashcard to replace the DVD.