SSE5 on the way

With the introduction of SSE5, many new 128-bit instructions have been added to the existing instruction set detailed in the AMD64 Architecture Programmer’s Manuals. Included are 46 base instructions that expand to 170 total instructions, enabling improved performance and reduced loads.

Source:
http://developer.amd.com/tools-and-sdks/archive/legacy-cpu-gpu-tools/128-bit-sse5-instruction-set/

PDF Documentation:
AMD64 Technology 128-Bit SSE5 Instruction Set

I wonder in how many years will it be used as a default set of instructions?