i think duckster is referring to loans/mortgages etc rather than savings...
I think in light of the reason the problems occured in the first place with Northern Rock, I douby they will be any great rush to be offering low interest rates to attract new borrowers. If anything they are probably more likely to increase interest rates on loans and mortgages to play safe.
With regard to savings, they may offer a slightly higher interest rate to attract the old cutomers back, but i think this will be unlikely