There is nothing available for booking yet but I presume it will be the 005.
Here is the list of upcoming changes to Flixbus services that are currently known about. This is information partly from Flixbus open data (which is then shown in a user friendly way on Bustimes.org) and generally going through the Flix site intensively to find the changes.
Date | Route | Change |
27th Feb | 023 Manchester - London | 2 additional fast round trips per day operated by Belle Vue (08:00/12:00 from Manchester, 15:00/19:00 from London). Plus minor retiming's. |
27th Feb | 071 Manchester - Bristol | Additional round trip daily operated by Belle Vue (11:40 from Manchester, 17:10 from Bristol) |
27th Feb | 073 Manchester - Newcastle | Minor retimings |
7th March | 020 Birmingham - London | Boudens trips running roughly 30 minutes later throughout |
7th March | 024 Coventry - London | New service running 2 trips daily Coventry to London via Northampton (first trip starts and last trip ends at Birmingham). Operator unknown |
13th March | 005 Leicester - London | 4 additional round trips daily operated by Desi Coaches |
13th March | 023 Manchester - London | 3 additional fast trips each way (operator unknown). Plus retimings on some other trips |
13th March | 920 Birmingham - Gatwick | New service starting linking Birmingham to Heathrow and Gatwick Airports. Running 6 times per day. Operator unknown |
I will say, this is only the start, there is a LOT to come in April/May including confirmed new links from Derby, Nottingham and Leicester to Heathrow and Gatwick airports, Weston Super Mare journeys starting and quite big boosts to Liverpool services.