While the signing of the Withdrawal Agreement looks certain (bar something like the ERG refusing because it is too soft for their tastes, for example), we need to remember that this does not address anything about a lot of important matters such as trade, which is actually a much tougher battle than the WAB. For example, how to resolve the different objectives of the EU and the US and sign new trade deals with both will still need sorting out. The decision to leave will be confirmed. The destination has not been.