https://youtu.be/1KFCc8xBD6Q
It is a bit difficult to learn very much from this interview between Roger and Miss Bitcoin Japan, because they mostly speak in conclusions. It does seem that she has become very skeptical of roger and his motives, even though she has known him for 5 years - but surely she has difficulties expressing herself in English, but also she seem to be somewhat lacking in some understanding of various nuanced arguments in order to really present them to Roger -
I did notice one outline of a plan regarding bitcoin cash... and it seems that if they fork, they are wanting to use the fork as some kind of leverage to attempt to force bitcoin to hardfok scale up to 2mb in November - or otherwise to ramp up the competition at that point by directing all mining power to Bitcoin cash and attempt to get various other economic nodes to follow them in order to attempt to increase bitcoin cash liquidity and utility at that time in order to attempt to become a viable bitcoin competitor - also suggesting that there is going to be an ongoing incentive to continue to mine bitcoin cash throughout this time because if the difficulty level of bitcoin cash is lower, then it may well be equally profitable to mine some bitcoin cash (assuming that bitcoin cash is able to retain some market value with the passage of time)
In my view 2mb would be borderline acceptable. But if it would be more, people would just move to another coin that would be more similar to the old version of what they had. (I know I would)