They're not all going to be on the Disc. And if they are, at least half of them will probably be partials to where they can finish it up later. If they were on the disc, I doubt they'd space the Vita release so far out as they'd want to get their money asap.
And idk why you wouldn't just wait. I think everyone in this topic that has ANY doubts about the game, should wait to get it, or at least RENT first. For some reason renting games is a very lost art that people don't go to anymore, and it would probably save people a LOT of money in the long run on games they eventually hate. Now for things like Downloadable Games...yeah, not exactly an option but they do come with demos at least. In this case though...just rent the game if you're on the fence. It's better than going with other people's opinion. The only time I don't rent is on things like Single Player games, and I usually just buy them later, though ME3 will be the exception (and I know people will laugh and say it's an overrated PoS franchise made by a PoS greedy ass company, but I want the story, couldn't care less for how it's perceived). Like I said, renting or buying later saves you a lot of headaches.
Lastly, as for showing Team Tekken being free...uh, what could they do about that? Cut off the stream when they realized Kor was gonna suck? Beg Renic to sandbag? Shit happens, it was the risk of running a live stream. Besides, not many Tekken players really care for SFxT, and the ones that do...aren't solely Tekken players. I doubt pure Tekken players are at the edge of their seats seeing if Team Tekken can give it the seal of approval, it's not a 3D game, it barely plays anything like Tekken, their time is better served preparing for TTT2 and TxSF.
