The move comes just a few weeks after former BMW brand design chief Karim Habib's departure. Habib took over in 2011 after spending two years at Mercedes-Benz. He left BMW in 2009 around the same time as Chris Bangle. Habib's replacement, Jozef Kabaň, is the former chief of exterior design at Škoda Auto. He also worked on other Volkswagen Group products, including the Bugatti Veyron.
Domagoj Dukec, like van Hooydonk, has been with BMW for a number of years, although he too previously worked for Volkswagen as well as French automaker Citroën. According to BMW Blog, his work with the latter included the C4 coupe and the C5 Airscape.
Don't look for a full overhaul of BMW's design anytimes soon. Production cycles take years, so look for concept cars to reveal hints as to what BMW has in store.