It hasn't changed much. I remember as a little boy rushing off to the toy shop to buy the latest release, only to find out that it didn't arrive at the time stated in the catalogue. After a couple of months I gave up bothering. It seems they don't change. Looking at most of their new locos their release dates are about October to December 2021, from previous experience if they release them at all, they will probably be early 2022 or later. Just look at their 2020 catalogue and see how many of those locos destined for 3rd and 4th quarter got released, I know we had Covid, so I can forgive them but they rushed out the Stephensons Rocket carriages (probably, just to upset "Rails"). So what happens to those releases now? Perhaps if they focussed on what they can achieve in the required timescale it would be better. Lets face it a lot of those new models are photos of the original locos, so that probably means, they have not even started the initial development.