Wait, they took out the DLC from the arcade version and then put it back in to charge people?
They couldn't put every costume in from that arcade version. The arcade has way more customization options that haven't been transferred over yet. Secondly, nowhere does the datamine say that all of this is paid DLC. There will be paid DLC and free DLC. People seem to think it's all going to be paid though because it says DLC and because there's a Season Pass.
Tekken Bowl's probably going to be paid though. DEFINITELY.
EDIT: In case people wonder why I say that
Time. It's the same reason why all the modes aren't in the game even though they said "the game should come with everything you'd expect out of a Tekken title" during the press release. They didn't have enough time to put in all the content that they wanted to. That's why they pushed the game back in the first place.