I don't 'think' it will be over 10% - it's a simple calculation to show why it WILL be over 10%.

3-4 days of new miners pushed the diff up 5.5% - it was pretty static for the first 10-11 days after the previous diff change.

So to do that: 5.5% = 4/14 of the hash rate increase.
i.e. the hash  rate increase was 5.5 * 14 / 4 = 19%

However diff went up 5.5% already so that leaves another 13.5% on top of the previous diff to stabilise JUST to the hash rate at the end of the diff change that just happened.

13.5% on the old diff will be 12.8% at the new diff - so expect at least 12.8% at the end of this diff change if no miners are added during this diff change and no miners drop off during this diff change ... which of course total miners will go up this diff change also ... i.e. it should be at LEAST 12.8% for the next diff change.