The list previously shown went through some minor changes, mostly to gain in consistency :

// Lands
4 [ON] Polluted Delta
4 [ZEN] Marsh Flats
4 [R] Underground Sea
2 [ISD] Swamp (1)
1 [ISD] Island (1)

// Creatures
3 [NPH] Jin-Gitaxias, Core Augur
4 [AVR] Griselbrand
1 [ROE] Emrakul, the Aeons Torn

// Spells
4 [OD] Careful Study
4 [OD] Entomb
2 [OD] Hapless Researcher
4 [CMD] Brainstorm
4 [AL] Force of Will
2 [MM] Misdirection
1 [TO] Cabal Therapy
4 [V09] Lotus Petal
4 [BOK] Goryo's Vengeance
4 [MI] Shallow Grave
2 [A] Animate Dead
2 [SC] Stifle

// Sideboard
SB: 4 [US] Show and Tell
SB: 1 [MI] Impulse
SB: 3 [M10] Pithing Needle
SB: 2 [DS] Echoing Truth
SB: 3 [M10] Duress
SB: 2 [NPH] Surgical Extraction

Hapless Researcher is a fine addition to the maindeck : As a regular Reanimator player, I always found it too narrow in its uses. In regular Reanimator, you are trying to find the perfect creature to reanimate given a certain matchup. Due to its limited reach, the card is often underperforming in regard of the general strategy of the deck.

In Next Level Reanimator though, the card works perfectly as any large creature plays quite similarly. Sure Griselbrand is the card to go in most situations, but you can rely on Jin Gitaxias or Emrakul to dismantle your opponent's board or hand, meaning there are 8 Maindeck creatures to be dumped without any kind of major preference in reanimating one instead of the others.

HR helps a lot in reaching the critical mass in dump effect to ensure a T2 reanimation for the list. Furthermore, it can chumpblock one of the opponent's attacks, which proves very relevant in aggro matchups.

One of the card I'm eager to test in the near future will be Boseiju who Shelters All in the sideboard as UW CB Miracle have hard times dogging that particular bullet during G2/G3.

@Kryptor:
Don't take it too harshly but I think your list suffers from severe designing leaks.
As a matter of fact, I understand your temptation to go the ol' "Dark Ritual, explode in your face" road but as I commented earlier, this strategy leads to awesome starts given the appropriate hands and awful losses the rest of the time due to it's inner inconsistency. I'd rather explore a less explosive build provided it can easily manage a turn 3 goldfish average with protection (this is the case of the list presented above).

Furthermore, I have numerous issues with the list in itself :
4 FOW supported by a grand total of 10 blue card ? If the protection become active only when you have Griselbrand online, it's not a protection in the very first place. FOW must be supported by 18 cards at the very least.
Not of This World: cf. point above.

From a sideboard point of view: The tricky part is to realize that Personal Tutor and Lim Dul's Vault are inherently flawed cards when it gets to post board action in Reanimator. One of the (if not The) most potent card against us is Extirpate/Surgical Extraction. Playing the S&T post board plan helps to get our fatties in play despise said gravehate. Sporting LDV or PT, you open yourself to gigantic blowouts when tutoring for S&T: You just made your opponent hate active while the whole point of going S&T was to render it moot. Impulse or any sort of big reach digger is really what you'll be looking for post board. It also helps a lot to find the right solution in dangerous situations (bridge, leyline, karakas, and so on).