Regarding the expansion. The article says:
Transport Secretary Grant Shapps will begin making a decision later this year on whether to grant a Development Consent Order, the final hurdle in the way of enlarging Europe’s busiest airport. The decision-making process will take up to 18 months, the Transport Department said.
So that's back into the long grass then
He could 'start' to make a decision in Dec 2020 and might have an answer by summer 22. However, if he gest replaced during that time, then the new person will be given time to get up to speed.
As I have said before, ain't going to happen.
Regarding my parking question:
I held off phoning the expensive LHR enquiry line and investigated the Northern Perimiter Road by G maps.
The answer is that the Business park for T2+3 is immediately adjacent to Long term T5 (NOT Pod parking) and, further, there is no fence between the zones as they share an exit. So I can book and park in the T5 section and take their bus. On the return, take the Biz Park bus from T3. Hopefully that will be 'simples'.