YMB...UKIP is now dead in the water. It wouldn't need a re-brand as much as a complete change. Its raison d'être has now been achieved, or it will in the coming years, so what exactty does it now stand for ?
Its only MP is about as welcome in the Party as a rat sandwich, and will soon go back to the Tories, from whence he was poached. The main reason that anybody voted UKIP in the past was due to racial and xenophobic concerns, most of which have been addressed by us voting to leave the EU.
So what is left ?
Their only real asset, Farage, is now busy trying to feather his nest in other areas. He has not put his name down for any of the recent by-Elections, although that may be due to his complete inability to win any of the other 7/8 ones that he tried over many years. Farage raises some interest but doesn't persuade.
Nuttall, to be fair to him, seems a reasonably nice chap, but nice chaps don't go very far in politics as a rule.
UKIP will slowly disappear over the next few months and years, because it just isn't relevant any more. UKIP are yesterdays men.