Humm, well, I think there could be a yes here.
I did not witness this first hand, but when I received my Cephalotus 'German Giant' I noticed something odd. First off, there was no non-carnivorous leaves. Second, there were very tiny pitchers, slightly larger than those, then only 1 pitcher that was quite big compared to the others, there was no in between versions between the small but slightly larger than the 'tiny pitchers' I talked about first and the 'large pitcher', it seemed as if it just skipped a gap, then next to this large pitcher was an even LARGER pitcher, not as big of a gap skip, but I would've expected something in between. The new pitcher coming in is roughly the same size as the biggest so far, maybe a mm or two larger.