Sprouts looking good, will they last till "that" lunch time?

it depends on the variety and on the weather - if you are growing an "early" variety, they might not be as good as now when the time comes.  Also, if the weather goes cold then very mild, plants may be tricked into going into spring mode, and the other hazard is if we get strong winds and plants are rocked (disturbing the roots), the sprouts might blow.  Why not freeze some as standby?  I used to have the idea of a Christmas dinner with certain crops picked fresh off the plot - until one year it was 3 inches under solid ice and I couldn't get to the plot let alone the spade in the ground  LOL

they should slow down in the cooler weather, but they may blow by the day.

i'm no good at freezing sprouts, our frozen ones last year were awful. must try harder this year.

I grow a variety called "Trafalgar",which are a later type. (I've often wondered if there's a connection between the Nelson and Trafalgar varieties).

I also resist the temptation to sow too early and wait until mid April,so that the sprouts are not maturing too early. I may be wrong with this, but I think a sprout that is maturing later in the cooler weather has a less of a tendency to "blow". This may, of course not work this year with the milder weather.

Currently my sprouts are about the size of a marble and putting on weight quite nicely, so fingers are crossed.