This mixed picture comes after the region pulled out of an 18-month stretch of negative growth in the second quarter of 2013, posting growth of 0.3 percent. But data published earlier this month revealed that the euro zone's GDP slowed in the third quarter, coming in at just 0.1 percent quarter-on-quarter.
"Of course, the ECB is unlikely to respond to all of this by loosening monetary policy again so soon after November's rate cut," Capital Economics' Chief European Economist Jonathan Loynes conceded in a research note.
"Nonetheless, Mr Draghi will no doubt want to re-affirm his previous assertions that the central bank has not run out of policy ammunition."
Indeed, since the last monetary policy meeting, focus has shifted to other potential tools available to the ECB, such as those aimed at improving liquidity conditions for banks.
(Read more: Eurozone business morale hits 27-month high)
These could come in the form of more "long-term refinancing operations" (LTROs) or even "very long-term refinancing operations" (V-LTRO), which see the central bank lend money at a very low interest rate to euro zone banks, in an effort to boost lending to businesses and consumers.
ECB President Mario Draghi has repeatedly stated that the central bank is willing to issue more LTROs if needed.
Loynes said: "We certainly would not be shocked if the ECB announced additional three year long-term refinancing operations (LTROs) at December's meeting." He added that these LTROs could be conditional upon promises from banks to use the funds to expand their lending activities.
"This would prevent healthy banks from taking advantage of the cheap funds to buy government bonds and might help to address the acute weakness of bank lending," he said.
But Howard Archer, chief U.K. and European economist at IHS Global Insight, added: "While we would not rule out an LTRO being announced on 5 December, we believe it is more likely to occur early in 2014."
(Read more: Is the euro zone already running out of good news?)
Societe Generale's Marcussen and Credit Agricole's Senior Euro Zone Economist Frederik Ducrozet agreed, stating that although a new LTROs was expected at some point, it was more likely to be introduced in early 2014 than in December.
The risks of deflation would have to intensify significantly for the ECB to resort to tools beyond LTROs, such as negative deposit rates, according to Marcussen.
As such, despite wide market speculation about the introduction of negative deposit rates – which see banks in the euro zone charged for depositing cash at the ECB – the move looks unlikely to be announced this week.
"It is possible that the ECB will eventually go down the negative deposit interest rate route but we suspect they would prefer not to and will only do so if inflation falls appreciably further," Archer said in a note.
While Credit Agricole's Ducrozet described negative rates as a "thorny question," but said it could be hinted at on Thursday.
It comes after ECB executive board member Benoit Coeure last week echoed comments by Draghi about negative deposit rates. In an exclusive interview with CNBC he said that negative rates had been "technically investigated, legally investigated," adding that it was only one instrument in the ECB's policy tool box.
—By CNBC's Katrina Bishop. Follow her on Twitter
@KatrinaBishop and Google