The Fiend: Expanded Spell List, Dark One's Blessing (temporary hit points), Dark One's Own Luck, Fiendish Resilience (resistance), Hurl Through Hell (wow, this one is pretty crazy).
Pact of the Tome: choose three cantrips from any spell list.
Effectively, they are increasing spell slots every 3 levels, highest spell level is 4th (and only 1 slot). However, their spells known progression is by the table.
No. Conjure spells are a certain level (conjure woodland beings is a 4th-level spell, for example), but have increased effects (different creature) or conjure more creatures if you use a higher level slot (same example as above, casting as a 6th-level slot twice as many creatures appear).
Book of Ancient Secrets requires Pact of the Tome and allows you to inscribe rituals.
Chains of Carceri (hold monster) and Voice of the Chain Master (telepathy and perceive through familiar) require Pact of the Chain.
Yes, wish is a 9th-level conjuration. It is over half a page long and has side effects (beyond "The DM has great latitude in ruling what occurs"). Cast with caution.
"Some transmuters are tinkerers and pranksters, turning people into toads and transforming copper into silver for fun and occasional profit." (PHB page 119)
Minor Alchemy can change one material into another for 1 hour. Master Transmuter can change one nonmagical object into another of equal or...
There is a Grappler feat... sounds like it is related. Advantage against creature you are grappling, action to pin (restrain), one size larger does not automatically escape.
Indomitable: Reroll a saving throw, use the new result, more uses at higher levels. Same as in Basic Rules.
I think I answered this one earlier, superiority dice are refreshed at short or long rest.
You must meet ability score prerequisites of both classes (it is 13 in one ability score per class).
No proficiencies for multiclass wizard or sorcerer.
Signature Spells is exactly the same as Basic Rules.
There is a Nonhuman Deities list in the Appendix. There are four elf deities (five if you include Lolth), but none of the really minor ones and no drow pantheon. For comparison, Bahamut and Tiamat are on this list as well.
Way of the Shadow: Shadow Arts (spells), Shadow Step (teleport then get advantage), Cloak of Shadows (invisibility in dim light), Opportunist (reaction to attack a creature hit by attack).