Hi Jean, hope all is good with you.
I think you could be onto something there, Maybe do a different block every 2 weeks omitting Christmas & New year. That way we could end up with 20 blocks which is a good number of blocks for a quilt. There could also be a few spare blocks thrown in here or there which could be optional changes for People who maybe want to replace a block if they don't like certain ones...
Food for thought
xxx J xxx