From London Reconnections - a freedom of information request:
http://londonreconnections.blogspot.com/

I'm not sure if the information within here is still relevant - sorry for the long post: The implication is that a local fare will apply between stations straddling Shoreditch: although not being a transport geek, I don't know whether this will be as similarly high as a normal zone 1 journey.

---------------copied from http://londonreconnections.blogspot.com/
Friday, 3 july 2009

An East London Line FOI Request
Reader Mike has been kind enough to pass on the results of an FOI request made with regards to the East London Line. TfL's reply includes answers to various questions pertaining to the Zone 1 status of Shoreditch High Street and the decision-making leading up to the South London Line cuts, and thus the entire response is reprinted below.

1) Can you confirm that Hoxton and Whitechapel, the two stations that will be on either side of Shoreditch High Street, will remain Zone 2 stations?

We can confirm that Shoreditch High Street Station will be in Zone 1 and that Whitechapel and Hoxton Stations will be in Zone 2.

2) Would a London Overground journey on the East London Railway between Hoxton and Whitechapel be classed as a journey undertaken wholly in Zone 2, or would a passenger be charged for travelling through but not alighting in Zone 1, as is the practice on a London Underground journey?

TfL will be offering a local fare for passengers travelling between Dalston Junction and Wapping. Therefore passengers travelling between these stations will pay a fare as if they were travelling through one zone, and not two zones, including zone 1.

3) What, if any, steps have been taken by TfL to ensure that a north-south journey on London Overground's East London extension is not charged in similar fashion to, for example, a First Capital Connect journey between Kentish Town and Elephant and Castle?

Please see above.

4) The zone classification of Shoreditch High Street is a condition of the funding deal that was set out by the Secretary of State for Transport. Can you send me a copy of this funding deal?

The document you have requested contains sensitive information concerning many other issues which bare no relation to your request. Due to this fact we are unable to disclose the full document, however we have extracted the section from this document where the Secretary of State for Transport advises of issues concerning the East London Line, which you will find
below:
EAST LONDON LINE

First of all can I reiterate that, to support a project TfL price at ?75m, I am already prepared to offer ?24m from savings that might accrue in other areas, I am also prepared to support an application by TfL to the ORR for ?19m of RAB funding, the cost of which will come from the
Department over the longer term. Against that background, you invited me to 'split the difference' of the remaining ?32m.

I am sympathetic, but there are some things to be clear on.

Should the scheme proceed, cost and delivery risk associated with the project (including cost overruns) would be yours, not mine. That includes the risk that the ORR do not accept that the scheme should, in part, be RAB funded. The Surrey Canal Road Station must be included.

In addition

TfL will need to confirm that the new Shoreditch High Street is in Zone 1 - this reduces the revenue loss on South Central services as a result of the new East London Line, and is the reason why I can expect to make savings as high as ?24m.
It will be necessary for you to propose the withdrawal of the South London Line (and the service to Bellingham) and the reduction of service between Denmark Hill / Peckham Rye and Victoria including informing all MPs on the corridor of this change; and, should this closure not proceed, I would be unable to grant the ?24m savings to put towards the scheme.
TfL must guarantee that no East London Line services will serve London Victoria (if they did the ?24m offer would be significantly reduced).

Should the scheme proceed, there are also a number of other minor issues relating to Phase 2b and Phase 1 of the project on which officials need to reach agreement. Early dialogue on these would be helpful.