It varies depending on the manufacturers, it will be dependent on their production schedule. Some manufacturers time it with the holiday park seasons, some with the financial years or supplier costs. Also, bear in mind that during the covid period when prices from suppliers were rapidly increasing this has started to ease and increasing are not happening as often and some manufactures are even offer price decreases.
As this is out of our control we can not guarantee about price changes, but if you are not ready we can advise on what the manufactures are doing now.