I really really hope that we don't go all digital.
Publishers already have way too much power and going all digital will just give them more. I can foresee a future where EA will find you badmouthing them and then they'll brick your 60 dollar game.
Or someone hacks into a server and then boom, no more games for you until they sort that shit out.
Oh, you lost your internet or there's a storm that cut it or something, well sucks to be you, you don't get to play anything now. But, hell we already got your money, what do we care.
There are many, many terrifying ways that an all digital future can go horribly wrong, and I predict we'll be experiencing them all, if (when) it happens.