Here in Berlin I live a short walking distance from the old Berlin's most prestigeous street, Unter den Linden, a gorgeous wide boulevard which has the stunning Brandenburg Gate at one end and the impressive Berlin Cathedral and the site of the old Royal Palace at the other end. The street is the site of many important and beautiful historical as well as more recent buildings which include the State Opera, the Russian embassey, Humboldt university, Kronprinzenpalais and many others.
The Kronpinzenpalais, apparently one of Vicky's main residences was damaged during the war, but was rebuild since, although the interiors were completely redone. In fact only the outer shell of the building was preserved. The inside looked like a pretty unimaginative communist-style building. Recently they had a long-running exhibit on Einstein, which apparently generated a lot of money. After that the building was closed off, and now they are redoing the interiors, but I doubt they would be trying to recreate the old rooms. The current trend in Germany is modern, modern, modern. They will probably turn it into something that in 30-40 years from name will have later generations scratching their heads thinking what on earth were these people thinking when they did this? The aweful communist-style People's Palace which looked like a huge ugly department store and had replaced the original Royal Palace has now, after years of dispute, finally been dismanteled. Beleive it or not, there are many, many people who wanted to keep that eye sore, saying that it is part of our history and matches with Berlin's eccentric character. I personally am delighted that it's gone for good. Now, if the city can get their finances together, they will eventually rebuild the original royal palace. But be warned! It is once again going to be the exteriors. I suspect, they would also try to rebuild some of the inside rooms, etc. according to the original plans, as a tourist attraction. But I think, the rest would be completely new and modern design to accomodate practical needs.