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[Timot]

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[Edolicious]

I believe you mean the update, not FH+? If so:

This one shows just a quick list of all the names.
http://www.feral-heart.com/smf/index.php?topic=58092.0

While this one shows more in-depth detail, such as where the portals are.
http://www.feral-heart.com/smf/index.php?topic=56894.0

Have a wonderful time exploring out dere.

[Edolicious]

Ahhh, gotcha. I understand now. FH+ is no longer up for download, so I'm not sure why you need the maps, but here is what was listed as being new in it.

Update V1.131 will include:
New logo
New music
New Lonely Cave
New character Podium map
New Forgotten Depths map
New Barren Tundra map
Many new items, objects, and plants
Over 70 new faux trees and plants
New sound effects for maps
New terrain textures
All new character textures
New character, object, and terrain shading
Bonfire Island has been separated to create Fire Island (will reduce lag problems)
Temple of Dreams has been separated to create Sky Temple
Completely revamped Endless Plains
Watermill is out of winter and teeming with life
A shortcut from Lonely Cave to Cape of Distant Worlds
New and improved stuff in every map
Sandstorm adjustments
Optimized particles to reduce lag
New default sky colors
New weather
Improved non-reflective water
Customized ENB Mod
New install program should solve the black screen issue
And reintroduction of wings

The 2nd Preview of Sky Temple, Fire Island, WaterMill, and Endless Plains is now posted!  Vote again for another look at what's coming in the update.

That's all I could find for now. Hopefully someone else will be able to provide you with a better list of the maps, if I did miss any.

[Insoholic]

Bonfire Island, Ficho Caverns, Watermill, Temple of Dreams, Endless Plains, Cape of Distant Worlds?
I've found a lot of other map names, but it seems that the maps weren't added.