Despite the announcement that the central Crossrail section between Paddington and Abbey Wood would open by the summer of 2021, there are now further delays.

The project, which has been marred by delays, has experienced a further setback due to COVID-19. Physical activity on sites had to be paused, causing the project to lose time that it cannot make up.

Crossrail will have to do additional work on its detailed recovery plan, which requires creating a new timetable for the outstanding works. It also requires a comprehensive assessment of the financial ramifications of COVID-19 on the project. As things stand, work on the project is continuing.
source= https://railway-news.com/crossrail-central-section-wont-open-next-summer/