I hit so many cases in SSE (and others) where I needed 'just one more instruction' and instead had a bit of a mess, my bet is that simple SIMD instruction sets will always grow over time.
For fun, maybe they could bolt on a VLIW set (or KLIW, 'Kinda Large') and push some of the ordering work onto the programmer/compiler.
For fun, maybe they could bolt on a VLIW set (or KLIW, 'Kinda Large') and push some of the ordering work onto the programmer/compiler.