I don't know, but you are saying we shouldn't do anything, because doing something might not be quite enough?
I'm saying that the pretense that 1 MBers are playing central bankers seems funny in the light considering most block increase proponents are the ones arguing for arbitrary control of supply.
So yes, we shouldn't do anything but optimize the current infrastructure under existing parameters and observe how the network reacts.
The notion that there be dragons at the capacity limit is unfounded and reactionary. We have to make the journey and find out what is, in fact, there at the edge - as many others have argued in the list. This is our opportunity to make scientific observation and discovery for the benefit of Bitcoin - while it is still in its early years and the capacity limit untested.
http://lists.linuxfoundation.org/pipermail/bitcoin-dev/2015-August/010179.html