The ABC has become a veritable baby factory, with both Leigh Sales and Virginia Trioli both taking maternity leave in 2012. The benefit is the depth of talent available to cover them in their absences. From the press release:

ABC Director of News, Kate Torney, announced today some changes to key hosting roles for 2012. Ali Moore will be presenting her last Lateline program tonight, as she is moving overseas next year with her family.

Ali has more than 20 years experience in journalism and began her career with the ABC in 1987.
Since 2006, when Ali returned to the ABC to launch and host Lateline Business, she has also presented on Business Today on Australia Network, hosted the Morning Show on 774 ABC Local Radio in Melbourne for six months, anchored the Afternoon Live program when ABC News 24 launched, and for the last year has been sharing the hosting duties on Lateline on Monday, Tuesday and Friday nights. Earlier in her career, Ali was the ABC’s China Correspondent from 1992 to 1995.

Director of ABC News, Kate Torney, said: “Ali is an excellent journalist and presenter, and has been a key part of the ABC News team. She has demonstrated her ability to adapt to different formats, programs and platforms over the last few years and she’ll be greatly missed by colleagues at ABC News. We thank her for her contribution and wish Ali and her family the very best as they head off to Singapore”.

Tonight is the last Lateline for 2011 and the program will resume on January 30, 2012, with Emma Alberici joining Tony Jones as a program host. Currently Europe Correspondent for the ABC, Emma will be returning to Australia after more than three years based in London. Emma Alberici joined the ABC in 2002 as presenter of its new morning business television news program, Business Breakfast. Also during her time at the ABC Emma has presented the Midday news and The 7.30 Report, and reported and presented for ABC Radio Current Affairs programs and Lateline Business.

Karina Carvalho will be joining Michael Rowland on ABC News Breakfast in 2012 while Virginia Trioli is on maternity leave. Karina is currently Western Australia’s 7pm News presenter and will be taking up the breakfast chair in Melbourne from February. Karina has been presenting the 7pm News in Perth since May 2008. A replacement for Karina is yet to be announced. Karina joins the breakfast team at an exciting time, with Weekend Breakfast hosted by Andrew Geoghegan and Miriam Corowa also launching in February.

Director of ABC News, Kate Torney, also confirmed that Chris Uhlmann will solo host 7.30 next year, while Leigh Sales is on maternity leave and Heather Ewart will step back into the role of Political Editor.