Most supporters of not changing the block size max limit (or even having one) forget that Satoshi originally put in that 1 MB limit as simply that: an anti-spam measure.
So doesn't that mean it would eventually be removed?
Why would that logically make sense. Does spam no longer exist? Do you expect it to eventually not exist?
Peter R's idea of a per-node block size is intriguing. I'm still pondering it.