I have been expecting this for the past year or two, as it has been rumoured since about 2013. When the changes were unveiled, I knew something was missing and almost worried that I predicted the LX450d wrongly.
Based on what? Trademarks were not filed in UK nor US, but Australia. Unless this was a last minute decision, I don't see why it won't ever be.
"refinement issues" according to Aussie press... not surprised, that engine is not suited for LX.