Interestingly, according to
a YouGov poll of approximately 1800 UKIP voters only 8% think that UKIP would run the country well.
Unsurprisingly the majority of their voters have issues with immigration and the EU. So it's probable they will be attracted back to other parties once they respond with harder immigration measures and a possible referendum on membership of the European Union.
For those that vote UKIP because they appear to have more conviction will do well to remember they were quick to exploit the populist opposition to same-sex marriage despite their alleged libertarian principles. A few more examples of this kind of opportunism should soon break any illusion that this lot are much different.
I expect UKIP will remain 'hot' up until the next GE. Then the hype will begin to trail off when the bandwagon jumping UKIP voters, not understanding FPTP, learn there is zero chance of Farage becoming PM after one election.
No doubt they'll also encounter problems on a couple of areas too. Activists from various classes will realise that their shared ethnocentrism isn't cohesive enough to keep them all together in the end. Additionally, now the spotlight is on them they will be forced to sensibly justify some of their policies which some activists probably don't even support/understand over and above EU and immigration. Considering how loony some of them are (the policies, combined with the candidates themselves) this will not go well.