BCCI President Saurav Gangulay announce on the first week of February that the IPL 2020 likely to be started on 29 March 2020 and finish on 24 May 2020. The game will be played for 57 days, which is more compared to usual 45 days of the duration.
As per the sources the IPL 2020 opening match might reschedule and start before few days. Although the IPL season 13 schedule yet to formally announce but you may see a new date for an IPL opening match between MI and CSK.
I see BCCI is making IPL bigger then ever. IPL season will be played long duration means more money more advertising. In fact, as per the sources next year 2021 you may see 10 IPL teams.