Beyond that, it's just going to be wherever the research takes me. And not everything is necessarily going to be particularly suited for running on ROCm. I'll use CUDA on NVIDIA hardware as and when needed, and I'm also open to dabbling in low-level hardware stuff and playing around with DSP's, analog computing, FPGA's, etc. One thing I want to work with a bit is some Spiking Neural Network stuff, neuromorphic approaches, etc. So not sure where this will end up.
Heck, it's possible that some of the stuff I work with will turn out to be well suited for running on a plain old CPU, which is one reason I spec's a relatively high-end Ryzen CPU and 64GB of system RAM for these machines, which otherwise wouldn't necessarily be all that important for "pure" GPU computation.
Maybe I'll even wind up going "old school" and building myself a Beowulf cluster! So I can finally answer the age old question about "imagine a Beowulf cluster of these..."