As an aside, combining reward halving with block size limit doubling would have probably been a good idea :)

On Aug 18, 2015, at 3:51 PM, Ahmed Zsales via bitcoin-dev <bitcoin-dev@lists.linuxfoundation.org> wrote:

-> 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..

..
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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