If the U.S. was split into four major parties...

[King]

...which states would be controlled by whom?

The Scenario:
1.  The Democratic Party still exists, but leadership changes causes it to become an economically and socially moderate "centrist party."

2.  Feeling alienated by the new platform, liberal Democrats form the Progressive Party based on an ideology that is liberal socially and economically, although not to the extent where they get called "Socialists" (that's reserved for a still minor Socialist Party). 

3.  Behind a strong leader, the Libertarian Party manages to successful finance and win statewide races across the country leading to the collapse of the GOP.

4.  With the Republican Party in shambles, neo-conservative leaders decide to form the "National Conservative Union" or just "NCU" for short.  This party basically duplicates most of the old Republican base's platform.

Using the above colors to represent each party, on the EV map calc, which states would be mostly dominated by which of the four major parties? (i.e. Vermont as Progressive stronghold; Michigan still a Democratic state; Alabama an NCU stronghold; New Hampshire a Libertarian state, etc.)

[Historia Crux]

Here's my idea of a map.

[King]

Here's my idea of a map.

That looks pretty good, although I'd probably move Massachusetts to green.

[Hash]

[Historia Crux]

Who could be candidates for the four parties anyway?

[King]

Who could be candidates for the four parties anyway?

Progressives = Howard Dean
Democratic = Mark Warner
Libertarian = Ron Paul
Conservatives = Mike Huckabee

That might be good.  I don't really know.

[Albus Dumbledore]

Ron Paul isn't remotely libertarian. He's a reactionary.

[Daniel Adams]

And if the Conservatives were created by "neo-conservatives leaders" Huckabee would have a hard time becoming a its candidate. His foreign policy clashes with neo-conservatism.

[Historia Crux]

How bought for the Conservative candidate be Sam Brownback?

[Historia Crux]

Here's my idea of the candidates

Progressive-Barack Obama
Democratic-Mark Warner
Libertarian-Ron Paul or Gary Johnson
Conservative-Sam Brownback