So the new edition of Blood Bowl dropped last month and I got a copy for my collection for Christmas. One of the first things people commented on during the rumor and reveal time was that GW was following the Age of Sigmar path and increasing the size of the models. I am sure this is only to allow more detail and not to try to get people to rebuy stuff so that it is not funny looking next to the new stuff.
Now that I have the set I was able to leverage my collection to compare the different models from the game over nearly the past 30 years to see how consistent they have been in scale. Long story short is that they have never been very consistent. The models from the Humans are from 6 different official GW products.
From Left to Right: 2nd Edition Plastics (Monopose), 2nd Edition Metal, 3rd Edition Plastic, 3rd Edition Metal, 4-5th Edition Metal, and 2016 Edition Plastics.
Overall we see that the 2nd edition plastics were larger than most of the other models until the recent release. The 2nd edition metals are bulkier than the 3rd-5th editions but generally not taller. The most recently released metal team is pretty similar in size the new team. If they were on the pitch together the 3rd edition plastics would probably show the scale change the worst of these.