"They are just going to be carrying on with the range of issues they have been talking about," a source familiar with Deutsche Bourse said.
On December 13 Deutsche Bourse made a 530 pence per share, or 1.3 billion pound ($2.49 billion), approach to LSE, its second attempt in four years to create a dominant European stock market which would be the second largest in the world.
Euronext later indicated it was interested in a deal with LSE and since then both Continental exchanges have held talks with London.
"The discussions will be ongoing and just part of that process. We will hit the ground running on Monday," a source familiar with Euronext said.
On Friday, LSE shares closed at 582 pence, valuing the company at 1.48 billion. The stock is up 74 percent this year on expectations of a bid battle, after hitting a lifetime high of 600 pence earlier this month.
Unlike in 2000 when the iX merger proposed by Deutsche Bourse and LSE collapsed amid hostility from UK brokers, this time round market participants say a deal with either Euronext or Frankfurt is likely.
However, it may not be just down to price.
"People don't care who owns the plumbing as long as the regulation is UK," a banking source said.
Deutsche Bourse has said UK blue-chip trading and regulation would remain under the UK's Financial Services Authority to keep LSE officials and market participants happy, while keeping German share regulation in Germany.
It has also given some assurances there would still be competition in clearing and settlement services but big banks and brokers are looking for a more cast iron guarantee of this.
Deutsche Bourse wants to put German and UK blue chip trading on a single platform in order to reap significant savings that would allow it to offer competitive trading fees to customers, sources familiar with the Frankfurt exchange said.
As with LSE, Euronext does not control its clearing and settlement providers, unlike Deutsche Bourse, though sources close to the Frankfurt exchange said no bourse would change its clearing and settlement service providers against the will of customers. The Financial Times said on Friday that Deutsche Bourse Chief Executive Werner Seifert is expected to discuss putting both UK and German share trading on one platform and how London market participants could be represented.
Analysts have said that Deutsche Bourse has deeper pockets and thus greater staying power in any bidding war for LSE, but expect Euronext to offer around 580 pence per share.
The Sunday Times reported on December 26 that Euronext was preparing to raise 1.4 billion pounds in the debt market to fund a bid for LSE.
Euronext, which sources said on December 23 was in talks with French investment bank BNP for financing a bid, has declined to comment on the report but a source familiar with the exchange said all financing options were being examined.
"Financing is not an issue," the source said, but declined to elaborate.
Exchanges are under pressure to merge to cut trading fees for customers further.