This is how the Daily Post (Mr Elson) quotes Mr Shanks, in the link posted earlier.
'Peter Shanks, Cunard Line president, said: “These will be one-off events, rather than a continuous service. We are committed to Southampton as our main base, but Liverpool is our spiritual home.
“If Liverpool invests in its facilities and has the opportunity for turnaround, it is quite possible voyages could start in Liverpool. I think that would be very popular with our guests.”
So - 'It is quite possible', and let's hope for the best.
Couldn't there be every 'opportunity for turnarounds'? Liverpool will know how to look after Cunard!
They just might need do a bit of dredging of old mud first... (mud, not muck, mind!)