The next phase of operation on the Elizabeth Line is to begin on November 6, Transport for London has confirmed. Trains from Reading and Heathrow Airport will run east through the cross-London tunnels to Abbey Wood, and trains from Shenfield will run west to Paddington.
(Permalink) Abbey Wood Elizabeth Line Heathrow Airport Paddington Reading Shenfield

The proposed rail link between the UKs Great Western Main Line and London Heathrow Airport faces a delay of up to two years.
(Permalink) COVID-19 Great Western Main Line Heathrow Airport