As well as the headline price rises, they're getting rid of several travelcards.
If you didn't go into zone one (or only did so on the bus) you could have a 2-6 travelcard = currently £5.10 off peak. Not from 2nd Jan: you'll be charged the 1-6 (now £7.50, then £8.00) or 1-4 (£6.30, rising to £7.30) rate = much more. Why yes, I do often get the train to Elephant and Castle (border of zone one and two) and get the bus or Boris bike from there.
They're also getting rid of the zone 1-3 and 1-5 day rates, and these will be charged as 1-4 and 1-6.
This is apparently not a price rise, but "simplification".
Oh, and the minimum automatic Oyster top-up will go from £5 to £8, giving them more of your money for longer. Deposits for new Oyster cards go up from £3 to £5.