Take a look at this photo. http://instagram.com/p/crbx7MpMHr/# It looks like biomes are regional, as you have warmer areas in one place, colder areas in another. Also, rivers separate biomes. Just take a look at those beaches!
There is also rumor that volcanoes might be added.
Also, what is up with the darker spots in the ocean?
I'm very excited for 1.7. I was hoping a new biome update would come out soon. Not sure how much I'm going to like these "Disco Mountains". Seeing random hills of multicolored stone in my desert would be odd, wouldn't it?
Actually, ignore what I just typed, I did not notice that they were to look like THIS: http://i.imgur.com/Wi1Q8mO.jpg
THIS is going to be beautiful. Much more like Real life deserts, I'm truly excited for this update.
Here's something to add.
Yes Sprint will be bound to 1 key. The default key42 which is LShift. (If you change a key then the reset button will show)
Dinnerbone deleted these tweets
Also the cinima camera view is being changed from F8 to F4. (Slows down camera movement and pans)
Deleted these tweets too?
Also in 1.6.2 and before F8 does that to the 'camera' view
B.1.8 removed all biomes and replaced them (some stayed and were improved)
Jeb has been showing pictures of new and current biomes. I feel this is not gonna break worlds, however add more up the unloaded parts.
E.g. A 1.7 world's biomes are not correct in current versions, river biome in the middle of a tree biome. So unless the change the all biome numbers and foilage nothing will be broken.
B.1.8 broke worlds because they wanted to improve things for 1.0
Also.. The biome colors shown in jebs overhead map, which btw is using mcedit. I see 3-4 new biome colors.
Not new grass, different colored grass (based off biome)
Also I see the unused "shrub" item with is ID 31.
The shrub is an unused block that has the same texture as the Dead Bush(ID 32)
But the Shrub Is placed on Grass not sand. Is in the game, doesn't spawn, isn't in creative yet
Un added Confirmed:
two+ new biomes
Btw If ur wondering where the shrub is, it's on grass top right. Same texture as dead bush