SIMD and GPGPU both fairly difficult low-level concepts as they stand: I think there would definitely be some valuable postgrad research in looking at how to create higher-level interfaces to graphics acceleration and GPGPU/SIMD that are as simple and effective as Go's goroutines.
The main problem is that SIMD and GPGPU (even hardware accelerated graphics, to a lesser extent) are bolt-ons; they're not a core part of every computer, which is why they don't usually form a core part of any programming language. At best languages might choose to integrate this functionality into the standard library, but i don't think it will ever come built-in for a general-purpose language (maybe for a domain-specific language?).
I've actually been attempting to write a GPGPU interface between Go and OpenCL[1], so it's certainly not impossible to do GPGPU or SIMD in Go (via cgo), but it would require writing your own 3rd-party libraries or making additions to the go runtime/compiler to develop a novel interface to this functionality like goroutines that can run on the GPU (a dream many people in the Go community share).