Somebody came out this morning (can't remember who and I've thrown away my copy of metro!) and said that they wouldn't pass anything along.
The base rate cut could be argued to be totally irrelevant if banks simply won't lend to each other at the moment any way.
Personally I wouldn't hold your breath, but if you've got a grace period, it might make sense to wait. On the other hand (not trying to be unhelpful) but if you can afford the current rate it might make sense to take it before the next disaster strikes!
Your call unfortunately - anybody who claims to know what will happen at the moment simply has a bit of fog in their crystal ball!