I would not change the concourse. The space & light works well, it’s just the through platforms and the fact that there are not enough of them that is the issue. P1 & 2 will eventually become redundant as train lengths increase, so I could see them being converted to either more concourse space or terminating metrolink platforms.
The pub is a nice place to sit & wait. The platforms... less so. I’m awaiting my first trip to the Victoria Tap and of it is stocking a range anything like the Piccadilly Tap then I’ll be happy.
If P1 & P2 were removed I doubt they be going towards concourse space. In fact I wonder if the original ten bay platforms existed today, how much use they’d be and how long they’d have left for this world? What can you do with a city centre terminus that can only fit 3-4 car trains? We’re the original platforms longer? It seems odd that the Victorians would build so many short platforms.
Western bays would be the most useful thing - long enough to hold 6 cars at least. The east-facing ones don't do tons, but are needed and used still - and might need lengthening. I think removing them would take out a lot of flexibility, especially given closures over the region as electrification projects continue.
One solution would be to remove the island platform and replace with a single platform that continued under the Cheetham Hill Road bridge. There doesn't seem to be much of a long term plan for how to utilise that side of the station. Its mildly useful at best.
The last redevelopment bumped Victoria above Oxford Road for me. The whole station was awful before it. Oxford Road was unfit for purpose before covid. It had insufficient facilities and platform standing space. Piccadilly is a much better station than both in every aspect apart from historic and architectural features.
I know its a bit heretical to say but the decluttering of platforms 13 and 14 combined with changes to the little mezzanine area and conversion of WH Smith into a waiting area, has been a success. It is sufficient for a 10tph service and that is the absolute maximum the corridor can reliably support.
