The DOA5 ones have a price and the DOA5+ one is listed as unavailable. I've had the costume pack in both versions of the game.
Edit: This isn't the first time I got screwed by this particular. It's in my copy of doa5+ right now, but in the store on the Vita there is a price listed with them. So if I delete the data for the the game on my Vita I would have to buy them again. Also that set was supposed to carry over to the PS3 versions of the game but it didn't, so I bought the set again on my PS3. So even though I bougt the set twice already, I can't get it on ps4 unless I pay for it yet again.
I think TN is ok with this kind of thing. Send them "proof of purchase", and they'll credit you the code. You should NOT have to rebuy any costume assuming you are using the same account.
For xbox one you have to download them all individually :\
Like go to each individual costume page and install
I understand why, but it is fucking stupid.