I don’t remember but I think the big bid last year was in Mar. That means retirements through APR of this year have been bid and awarded. If They post a January bid it should contain positions for planned retirements after 1 May. Depending on their bid plans it might contain positions for every retirement from 1 May to the end of the conversion window. It’s more likely however that they will cover a portion of the retirements and one or two more bids will follow with overlap where they cover the rest.
They state they are not doing a big bid this year. They have however stated that in the past and ignored their own reasoning.