The thing is that I think the neck printing represents from which factory the figure comes from. For example, the minifigs from sets are a higher quality and most of them show the mark on the neck, so they come from a better factory, meanwhile, the collectible minifigures feel a little bit cheaper, most of them don't present the mark and they come from the Chinese Factory, so, my guess is that if this figures show that print that means they will be a higher quality overall. I guess we will have to wait to see what happens and if my theory gets blown away.