I haven't seen this excellent recent blog post by Eli Dourado referenced here:

https://readplaintext.com/how-should-bitcoin-be-governed-680192fcd92b

I agree with his conclusions: we need better communication/organization mechanisms among 'stakeholders' and between the various factions (developers, miners, merchants, exchanges, end-users).

And the preliminary results of using a prediction market to try to wrestle with the tough tradeoffs looks roughly correct to me, too:

https://blocksizedebate.com/

(my only big disagreement with those predictions is the 'Number of nodes' -- I don't think replace-by-fee would affect that number, and I think even with no change we will see the number of full nodes on the network drop to a couple thousand, because the general-purpose-home-PC is headed the way of the dodo: http://www.businessinsider.com/pc-sales-plummet-in-q2-2015-gartner-idc-say-2015-7 ).

--
Gavin Andresen