The security of the blockchain is king, without it the price will go to zero.
Which leads into the hesitation to change things it would seem. Logical but.. I stand by my title.. I offer no great solution just something like a linear increase in size so mores law dominates any linear increase but that isn't much of a suggestion.. All I know is 1MB in 2040 will just be overly silly.
with a GOOD dynamic block code. the NODES.. emphasis NODES flag what they can cope with. and then when a confident majority of nodes can cope with more bytes. the pools would then ease themselves into it and weigh up the orphan risk as they test the water by making small steps BELOW the new acceptable limit ensuring little to no orphan risk for their attempts