He meant not making the new costumes available as a replacement for the other alternate costume as far as I am concerned. As in, making Alternate costume 4 a replacement of Alternate Costume 3 so you don’t have to buy the new DLC. I believe everybody is fine with modified version of a DLC as long as it keep it’s current costume id.
But I might be wrong… he might have meant any modified version of the new costumes in which case I would say is slightly ignorant considering all the character mods are based on the original models or rigs at some point and if a modified version of the new costume was released and attempted to be used as replacement for the other costumes, it would be one step longer than using what the players already have in their hands.
Let’s go for option 1 shall we.