-> You need to take into account the reward halving, likely to be in 3Q2016. Forks and reward halving at the same time would possibly be a bad combination. 

-> The original proposed date for the fork was December 2015. It was pushed back to January as December is a busy period for a lot of people and businesses. Likewise, June is a busy period for people. July / August is a good period as it is quiet because people go on holiday. A window of 2 months during holiday periods is better than starting in June. January 2016 is better, mainly because of the excessive reward halving chatter likely to be going on..

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Proposal (parameters in ** are my recommendations but negotiable):

1. Today, we all agree that some kind of block size hardfork will happen on t1=*1 June 2016*

2. If no other consensus could be reached before t2=*1 Feb 2016*, we will adopt the backup plan

3. The backup plan is: t3=*30 days* after m=*80%* of miner approval, but not before t1=*1 June 2016*, the block size is increased to s=*1.5MB*

4. If the backup plan is adopted, we all agree that a better solution should be found before t4=*31 Dec 2017*.
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