Right on schedule, the BMW 3 Series is set to get some updates in the 2016 Model Year and the proof is in the spy photos that are starting to leak out. One obvious new feature on the 3 Series sedan and wagon is the presence of adaptive LED headlights that were previously only present on the 4 Series in optional configurations. Other upcoming changes include a restyled front bumper and newly shaped kidney grills.The biggest news about the upcoming LCI though is in regards to engine changes that will be occuring over a two year span according to sources. In July 2015, the 335i will become the 340i with the B58 engine replacing the existing N55 motor. One year later in the 2016, the 328i with an N20 will be retired to make room for the 330i with the all-new B48 engine.Rumors are starting to swirl that the facelifted 3 Series will take everything off and bow for photos at the Geneva Motor Show this spring. Stay tuned for more coverage and updates as they happen.If you are in the market for a new BMW, are you re-thinking ordering now and holding out for a 340i?