I don’t think a new reverb for Stadium has to be made to perform well on Helix (which *is* much lower powered). I get that they said they’d try to release any new FX on Helix too, but if a new looper doesn’t have to, then a new reverb doesn’t either.
And yes, the increased processing power absolutely allows them to do reverb in different ways that will give a more complex and realistic sound.
Making a good modern reverb is a thing people know how to do when you have the system resources to do it. I have full faith in Line 6 and the excellent people they have hired being able to do it.
I don’t really want to eat up this thread talking about this though. My original comment was just that Stadium looks great and even better with Proxy, but that for me personally that aspect is still not great, so I hope they revisit them soon or hint that they will.