Base Set had 16/102, Jungle had 16/64 and Fossil had 15/62. Jungle and Fossil had 48 cards in Japan, with no non-holographic rares and Mew being the 48th card in Japanese Fossil.
Personally, I always kind of resented that English Jungle and Fossil were 25% holo, especially because another 25% were those same rares but non-holographic. In hindsight I wish they had combined the two sets into one, picking and choosing which of the rares remained holo and which were bumped down to non-holos.
Also, assuming that NV has all of Red Collection's holos, that would mean there's at least 9 holos out of 100+ cards. But they could upgrade something else to holo status like they did to Braviary in EP... namely, the two Victini cards, or maybe the Cofagrigus, in the Victini Decks.
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Unrelated to the talk of holos, here's a comparison between the first three Gen I and Gen V sets in terms of new Pokemon:
Set #1: Base Set introduced 69 Pokemon, BW introduced 72 Pokemon.
Set #2: Jungle introduced 45 Pokemon, EP introduced 26 Pokemon.
Set #3: Fossil introduced 36 Pokemon, NV will introduce 54 Pokemon presumably (153 - 72 - 26 - 1, for Axew).
