Blackmagic Design has announced Fusion 8 for Windows, Mac and Linux. It is currently windows only on Version 7, but version 8 which will be released in quarter 3 of 2015 for Windows, OS X and Linux, and is being shown at NAB.
There will be a free and $995 full version as there are now.
Looking forward to learning a new compositor at a reasonable price. I love what Black Magic is doing!