I have also read the very same information in this month's edition of Rail Express.
I can't understand why the magazine have published that the 156 will be available at Warley, when it appears that the guys who did all of the research and development, and later commissioned and marketed the model, (Realtrack) haven't even been informed of an exact delivery date of the models, and do not think they will be here in time for Warley.
This mis -information only leads to disappointment for the expectant modeller and unnecessary stress for the retailer.
(I might try ringing the Pope, to see if he can intervene) Lol