For Malaysia watchers, Wednesday's central bank meeting—the last under Governor Zeti Akhtar Aziz—will be closely watched for hints as to who her successor will be, rather than the direction of monetary policy.

Governor Zeti, named Asia's best central banker in 2010 by Euromoney Group affiliate Emerging Markets, will be ending her 35-year tenure with Bank Negara Malaysia (BNM) next month. Her replacement has yet to be named, though according to local media reports, all three of the BNM's deputy governors are in the running for her role.

"It'll be interesting if they name the successor on Wednesday. I assumed they would give the person three months for the transition to take place, so the delay may mean they're going with somebody internal," noted Rahul Bajoria, Barclays economist.

With the next BNM meeting slated for May, the next Governor certainly has large shoes to fill. Zeti leaves behind an economy weighed down by tanking oil prices and an evolving political crisis.

Malaysia is the world's second-largest exporter of liquefied natural gas, according to the U.S. Energy Information Administration, so sinking prices puts pressure on state finances.

As a result, Fitch Ratings expects the ratio of federal government debt to gross domestic product (GDP) to rise modestly to 2017 but to remain below the authorities' 55 percent policy ceiling.

Meanwhile, investor sentiment has been hit by Prime Minister Najib Razak's alleged corruption scandal involving $681 million. Local activists have repeatedly demanded Najib's resignation but the PM has denied any wrongdoing in relation to the matter.