The first proposal introduced by Adam Matlack is a soft fork happening in the next update if approved by the community which would see 6 million ION coins added to the total available supply. According to Matlack the team has determined production of ION is behind. To explain he cites Fig. 1, pointing out the first years issuance in terms of what should have happened (the creation of 12 million ION) and what actually happened (only 7.4 million ION were created).
If you look into the matter further you realize that during year 4 and 5 there will be a huge inflation rate drop off-8.5 %.
Current White Paper Implmentation
The second proposal broaches the idea of restructuring the inflation models from year 4 to year 10. This new structure would allow a slower decline with the inflation drop off happening in year 10 instead. As far as years 11-100