Regarding your previous mention of a "possible eastern spur" to Crossrail 2, what routes for that have you so far studied?
Do those possible routes include interchanges at Stratford Regional and, alternatively, at Stratford International stations? Do they include Barking, and if so, where?
Are you confirming in your previous answer that you wish to finance and build a full-specification grade-separated junction towards the East End in your current Crossrail 2 plans, even if that leads to blind tunnels to begin with?
Would any blind tunnels nevertheless help with providing a convenient surface access site for your main construction heading and stations?
Do you anticipate that any possible East End route would be expected to reach Thames Gateway locations, and be partly financed by property developments there?