|"May 2018: Paddington to Heathrow"|
Link to web site
"... Thanks to Crossrail operational papers submitted to the TfL Rail & Underground panel, we can now confirm that a [temporary 'TfL Rail'] roundel makes its likely first public appearance [at the eastern end of what will be Crossrail].
"... The existing stock will gradually be replaced from December 2017, as the new Crossrail class 345s enter service. Just how those new trains are planned to enter service – and indeed the initial service pattern – is also something the presentation provides some confirmation of.
"... Finally, we also have confirmation of the initial service level in December 2019, including the split between branches, at least as currently planned."