There should be a small fork before the next block reward halving, maybe raise the size limit to 1.5MB just to hold the hands of the crybabies. Then after the halving, raise it to 25MB. I don't understand the reluctance of upgrading. When Bitcoin came out most people were still using Windows XP. All they're doing is changing a number FFS!
Just as much trouble to fork it for lower amount. That's why 20MB now and not just doubling or tripling it. Besides, miners choose how bigger block to make, and it's a small disadvantage to be making blocks very much bigger than anyone else (extra milliseconds to put all the tx together) so there has been a constant game of chicken on block sizes, keeping blocks near to capacity and edging up the size, now it's got to the full 1MB and miners cannot improve capacity without code change.
