Shenmue 3
Streets of Rage 4 (2D)
Onimusha 5
Dino Crisis 4
Shadow of Rome 2
Jet Set Radio 3
Killer Instinct 3
Shadow Complex 2
New Castlevania (2D)
New Castlevania (3D)
Super Mario World 3
God Hand 2
Bayonetta 2
Binary Domain 2 (sure, part 1 just came out, but even without a big budget this is better than a lot of TPS's out there)
Singularity 2
Deadly Premonition 2
Project Gotham Racing 5

Five? Well for a general idea...

Legend of Dragoon 2
Skies of Arcadia 2
Shenmue 3
Mother 4
Ristar 2

That's just a start...There are soooooo many...Wow, I really seem to like RPG's.

a 2d Metroid game
Donkey Kong Country Returns sequel (on any system)
A true Starfox game (not farmed out to another developer)
Bayonetta 2
Mario Galaxy 3 (or a new series that is a progression from Galaxy)...

Didn't put any 2d mario games on my list cos we know (like those annoying relatives we can't get rid of) they're coming anyway.

sequels  of

extreme-g (the n64 one) (i loved it and i did never like wipeout because i don't like the vehicles there)
forsaken (playing it online would be great fun)
super tennis (lol game is from 1991 i'm old^^)
k.o.t.o.r.
rallisport challenge

In no particular order:

Freedom Fighters 2
Banjo Threeie.. .aka the real BK3
Eternal Darkness 2
Brutal Legend 2
A direct sequel / continuation of Super Mario RPG as a joint effort by Square and Nintendo.

Only unannounced:

Star Wars: Knights of the Old Republic III (by BioWare)
Star Wars: Battlefront III (RIP Pandemic Studios)
Colony Wars IV (by former Psygnosis - SCE Studio Liverpool)
Dino Crisis 4 (with modern Resident Evil engine and gameplay style)
Half-Life 3 (on new engine or "Source 2.0")
Crysis 3 (just continue this awesome series, Crytek)

1. CoD: Modern Warfare 4
2. Grand Theft Auto VI
3. Final Fantasy XVI
4. Final Fantasy XIII-3
5. Ninja Gaiden 4

I know that all of these seem really unlikely, it's really just a wishlist of mine.

MASS EFFECT 4
Castlevania: Lords of Shadows 2
God of War 4 (not yet officialy announced ) but with a different Hero equally cool Hero
Batman
that´s about it would rather see good new IP´s then million sequels

1) Next (good) Ratchet & Clank
2) Age of Empires IV (real shit, not something in cell-shading where you must pay for every centimeter of gameplay)
3) Splinter Cell 6
4) Star Wars: Knights of the Old Republic III
5) Half-Life 3

Zone of the Enders 3

Legend of Dragoon 2

Wild Arms 6

.Hack 8

Kingdom Hearts 3

Rival Schools 3

Suikoden 6

X-Men Legends 3

Monster Rancher 6

Xenogears: Episode 1

Xenogears: Episode 2

Xenogears: Episode 3

Xenogears: Episode 4

Xenogears: Episode 6