Found this from sometime last year but the questions asked in the somments were conveniently not answered.

https://steemit.com/steem-inflation/@fyrstikken/what-is-the-inflation-rate-of-steem-here-is-the-supply-table-for-the-next-20-years

So, steem doesn't stop printing completely but in 20 years there will be a quarter of the supply but how many new people demanding it? It is going to be very difficult to get hands on and with the price increases expected, the payouts aren't going to hold a lot of Steem in them.

Off to bed...