Possible. But I would point out that producer prices fell by about 4% each in October and November compared to the previous month. This could continue, and a few months later this "deflation" (haha) might work its way through to the customers. And then?
It can continue, yes.
However, price adjustments at the baker or supermarket do not reflect producer prices one-to-one.
Because the baker can't simply make his rolls 50% more expensive, then no one would buy them.
In that respect, falling producer prices initially mean that the baker’s losses decrease, not the prices for rolls.
Energy costs also remain high, and various unions have enforced wage increases around 8% over 2 years, plus one-time payments amounting to a month’s salary.
That means prices will rise in 2023/24, simply because wages are going up.
With all due respect, I don't see much substance in your assumptions.
Which also aligns with the fact that no expert in this field expects deflation for 2023/24. On the contrary, in 2023 it will be another 7%.