Adding things up ..
Note: I did not try to interpret people's thoughts to try and get things to conform to the list, so some ideas are similar but not necessarily the same.
Here is what we have so far ....
CLASSES
* Druid (shapeshifting and spells) 5
* Nature-spell caster (entangles, lightning strike, gusts of wind, etc - like druid but without heavy focus on shapeshifting) 2
* Shapeshifter 1
* Barbarian 2
* Two-handed Striker (possibly barbarian) 1
* Swordmage 3
* Arcane Strike (ala arcane duelist) 1
* Unarmored arcane based melee striker 1
* Divine Striker 1
* Necromancer 5
* Summoner 3
* Magically-powered Leader classes 1
* Psions 3
* Monk 2
* Dwarven Defender 2
* Wild Mage 1
* Bard 1
POWER SOURCES
* Elemental Power Source 2
* Pscionics 3
* Ki 1
PC RACES
* Gnoll 2
* Goliaths 2
* Shadar-kai 1
MISC
* Fluff 4
* Red Steel/Savage Coast 1
* Grafts 1
* Gestalt Rules 1
* Wishes (done generically) 1
* More available options (feats, classes, weapons, powers, paragon paths, etc) 2
* Metallic Dragons 1
* More/Better Multiclassing options 1
And, of course it is safe to say that some people may not have mentioned things that were implied or already-known-to-be-released soon (i.e. primal power source isn't listed but considering the number of nature/druid/barbarian classes being hoped for, I'd say it's implied)