Both films are DEFINATELY coming out next year (Street Fighter's out in February and I'm not sure when Tekken's out, it's all very hush hush). Both are in their post production stages at the moment. They're probably gonna be rubbish but they might be fun.
Here's some pictures.
STREET FIGHTER

Kristin Kruek as Chun Li

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http://streetfightermovie.net/photos/robin-shou-as-gen.jpg[/img]
Robin Shou as Gen.
TEKKEN

Cung Le as Marshall Law
Jonathan Foo as Jin.
At the moment there's no official photos for Tekken.
Here's some synopsis'
TEKKEN
Set in 2039, the film tells what happens as the greatest fighters from around the world come to compete in the last and greatest sporting event of all time, the Fist Tournament. After World Wars destroy much of civilization as we know it, the remaining territories are no longer run by governments, but by corporations the mightiest of which is Tekken. In order to keep the masses down, Tekken sponsors the Iron Fist Tournament in which fighters compete to the death for ultimate glory and receive a lifetime of stardom and wealth.
The story follows Jin Kazama, a street fighter that enters the tournament in order to avenge the death of his mother that he blames upon Tekken's powerful and controlling Chairman, Heihachi Mishima. He knows that the only way to get close enough to Mishima to kill him is to win the tournament. With the help of Lucas, an ageing Iron Fist Champion and fight trainer, Jin makes his way through the tournament, but in doing so, he begins to uncover his own past and inner demons as well as exposing a dark underbelly to Tekken that threatens the very existence of humanity.
STREET FIGHTER
Street Fighter: Legend of Chun-Li is a live-action feature film based on Capcom's video game. The new film is focused on female fighter Chun-Li and her journey for justice.
There's cast lists up on IMDB if anyone's interested too.