Mixed-mode via zone 1 isn't frozen at all, either peak or off-peak, except for fares involving zones 79 there're full fare tables in the annexe of the document I linked to earlier. Contributing to that is an increase in the peak zone 1 mixed-mode add-on by 10p.
Apologies, I skimmed through the document and misread 1.14.
However it's good to see ATOC have agreed to implement half price on Oyster 16+ benefitting young people commuting to college on NR services in addition to those who currently benefit using TfL modes.