A question for the Aviation ‘experten’

[cornishfrogboy]

This concerns Avios and Companion Vouchers with BA, so if it ‘ain’t your thing’, then it’s time to back page.

I want to book a Companion Flight and also with Avios on a long haul only return flight. Where to, does not greatly matter.

Currently there is availability on both legs, but only on Economy. We would like Prem Economy out and Economy home.

If I were to book the Economy Flights now, and (as BA assert), other cabins become available….

1. Can I simply phone BA and upgrade using points (and of course an uplift in cash as APD increases will be involved)?

2. Is this in the opinion of Stanleycamel and others, a likely scenario?

I am not talking about a standard DIBB, Florida routing.