There is speculation that this might take the form of a promise of a referendum after the next general election - although Mr Cameron has opposed the idea of offering an "in or out" vote.
The presidential election that Nigeria is to hold on August 1st was turned into a referendum on General Sani Abacha, the current ruler, when all of the five political parties allowed to take part adopted the general as their candidate.
Conservative cabinet minister Philip Hammond said he hoped there would be a draft bill on a referendum ahead of the next general election.
Once that was resolved, it would be made clear that the UK wanted powers returned to the British Parliament, with the public to vote to approve such a return of powers either at the next General Election, or in a referendum "shortly afterwards", he said.
Mr Sharon has thwarted their efforts to prompt an early general election or a referendum.
Many analysts think he will combine the promised referendum with a general election.
Does this suggest that Mr Hague is set on turning the next general election into a referendum on the euro, or only that he sees his position on Europe as one sharp weapon?
Mr Monti's comments come after UK Prime Minister David Cameron promised such a referendum if he wins the next general election outright.
The other diplomacy I have strong views about, and we've touched on it here, is in reconciling the Sunnis - I mean they were completely disenfranchised, as Larry mentioned, as a result of the constitutional referendum and the general election.
What happens if we have a referendum at the same time as a general election?
Mr Cameron has promised a referendum if the Tories win the next general election, due in 2015.
He has now promised to put the issue to a referendum within two years of the next general election, assuming he wins it.
Mr Bourne also said that whatever the outcome of the forthcoming general election, David Cameron would not block a referendum.
Former shadow home secretary David Davis, who was defeated by Mr Cameron for the Conservative Party leadership in 2005, has called for a referendum on Europe within three months of a general election.
And he said he would be disappointed if UKIP did not top the polls in the 2014 European elections, arguing that such an outcome would intensify pressure for a referendum on EU membership to be held this side of a general election.
Proponents want a referendum to be part of a more aggressive approach to politics in general.
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In an inspired gimmick, he has promised that the referendum will be held only AFTER the Conservative Party is returned to power in a general election expected in 2015.
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David Cameron has said there will be a referendum on whether Britain should stay in the European Union, if the Conservatives win the next general election.
Prime Minister David Cameron hinted last week that he might be ready to call an EU referendum after the 2015 general election, saying that the coming years would see "opportunities for a new settlement between Britain and Europe" which would require "fresh consent from the British people".
Counsel General John Griffiths AM also answered a question on the assembly government's legislative plans following the result of the referendum on full law-making powers.
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