will they have to re-brand the new LIBOR as a distinct measurement from the current one? and keep publishing the outdated version?
I mean, what happens to the Eurodollar contracts 5yrs out; surely any counterparty is short LIBOR this far out is going to say "it doesn't matter what the NEW LIBOR is, we made a trade on the OLD fixings".
Surely the BBA will have to change the way it's measured, they can't just tell the contributors to stop lying. And once it's changed, so has the underlying on all these contracts - nevermind all the OTC stuff - so they will have to keep publishing the current measure of LIBOR until no more trades (exchange contracts in the least) are made that use it as it's underlying, we're looking at 2019 and thats if they pull their finger out!
Or they say "f*ck it, it's your problem. You should have seen it coming" and LIBOR jumps XXXbp overnight and stays that way??