I make no assumptions about commercial companies, other than that they will try to stay legal (or legal enough to avoid action against them) and that they will maximise benefit for senior managers and their owners (in that order, generally).
However, there's a limit to how far you can stiff your customers without losing revenue, and thus impacting benefit for senior managers and owners, so I expect that the price of the bundle won't go up vastly. But that could still be inflation plus a bit - maybe a 10% rise.
It might depend on how many take up the offer. If it's a good take up, then expect a price rise in a year. If it's poor, and after a year CC subscriptions are still poor, then Adobe have a real problem. Screw up the price, and accept that only professionals will ever use CC? Even more tempting offers for amateurs? Who knows.
PS - FWIW, I've subscribed. I've got CS5 and LR5, and the subscription rate of £8.78 in the UK is about what I used to spend to upgrade LR every time, and to upgrade CS every other time (when you could do that). However, if the price goes up much, or we get fewer and fewer enhancements in Photoshop (enhancements useful to me, that is), then I'll drop back to using CS5 and LR by perpetual licence.