Okay, I've been thinking that biomes are waaaaay too small. What if the biomes were, like, two or three times the size they were now? I feel it kind of ruins, for example, the desolate feeling a "huge" desert gives when you can see the edges of it. While not always, often biomes are tiny, and I feel they ought to be much larger.
In the new update you get a choice for larger biomes. And according to minecraft wiki the biomes ar 16x larger. The biomes are much bigger, so I dot know why you are saying they are small.
Here is the link if you want to check it out.
http://www.minecraftwiki.net/wiki/Large_Biomes