There have been a lot of really good young bands lately, with huge amounts of talent.
I picked the 5 best (unknown) bands that I discovered this year.
The first band is Painted in Exile
They actually have a big fan base already.
PIE (come on, their acronym is PIE, they MUST be awesome) released 2 EPs, and are currently writing a full-length album.
Their music is basically a big genre mash-up, mixing genres such as Metal/Deathcore, Progressive Metal, Technical Death Metal, some Black Metal, smooth/lounge Jazz, Rap, (Indie) Pop and probably some more lol.
The songs on their last EP "Revitalized" are all over 8 minutes long.
Check them out on their Myspace page.
Here's their song "Skylines": http://www.youtube.com/watch?v=UlyYTmk5q0g
Next is Ever Forthright
What they do is simply taking the best of Djent, throwing in some epic solos and being jazzy.
It works very well. It's all instrumental yet, but as far as I know, they want to add vocals.