Much of that is new money I think.
The list of schemes have been on the wish-list for some time, now they have confirmed, approved funding.
The biggest improvements from the airport point of view that is happening (in short term - HS2 is the biggest in long term) is the Ordsall curve that adds loads of paths through the city and provides connections to the airport from far and wide (already known though).
Salford Cres is part of that.