You can find the survey by Adam Bargteil here.
I have a simpler proposal: revert to the original conference format for SIGGRAPH technical papers (i.e., before year 2002) and give authors the option to submit an extended version of their SIGGRAPH conference papers to ToG as journal papers (with the usual rule of at least 30\% more new materials, for example, most likely for additional analysis and evaluation).
We can then get rid of the current special ToG issues of SIGGRAPH and SIGGRAPH Asia.
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