Formula Fusion, a spiritual successor to Wipeout, created by former developers of that series, is now up under Concepts on Steam Greenlight. Additionally, a gameplay concept movie is available for viewing as well.
As the concept movie points out, the footage you see isn’t representative of final gameplay, merely a teaser meant to illustrate what the game will hopefully look like and how it will play. In the past, R8 have stated that they are drawing inspiration from the handling of Wipeout 2097, but this, too, could change.
Formula Fusion is in development for PC. A “pre-release” build of the game is planned for this June.