I've seen mention of the AU plugin working natively under Silicon-- is that correct? If so, is it possible to use it in Pro Tools and DP11? I imagine not, as people would be doing it, but if so, I could still run all my VSL software on my 5,1 slave.
If not I can run everything that's NOT vsl on my Mac Studio and give up my vsl libraries. Unless there's some convoluted way to get MIDI to VEPro 7 on my slave using Audio MIDI and the MIDI networking feature
So the VEP AU plug in runs in Rosetta on Apple Silicon Macs with the DAW running native. I suppose there's some convoluted way to run something like Blue Cats Patchwork in AAX to host the AU VEP plug in, inside Pro Tools, but if you're going this route the best bet is DP11 which hosts AU natively. The issue is like Even pointed out that MAS is just better, it's a whole lot of rewriting templates to get decent results and then VSL finally release the native Apple Silicon version with MAS etc.
The better solution if all you do is orchestral work is to run the DAW in Rosetta, use the actual MAS etc. plugin you want to use, and use your 5,1 as a slave.