I dunno, I mean I want to believe that Betas of OoT, N64 Eternal Darkness, N64 RE0, Resident Evil 1.5, Conker's 12 Tails, N64 Dinosaur Planet, etc. (and SimCity on NES) will leak someday, but I kind of doubt it.
The 64 DD could have been pretty good, problem was it was just another expense added to an already failing expensive console that is the N64. In my opinion, F Zero X Expansion made the best use of it. Addons typically don't do well, SegaCD, Sega32X, Jaguar CD(lol), Famicom Disk System even got bad due to piracy. Seems NEC's PC Engine is the only console that ever did the the addon right.
The N64, needed a cheap CD drive, not a pseudo second cartridge slot with a Real Time Clock and internet Modem. Even with a cartridge and disk combined they only have 128MB compared to 650MB. It was a fool's errand.
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