According to http://ftr-wot.blogspot.com/2013/02/2522013.html:
there will be a new replay system - the replays will be stored on the World of Tanks server for a limited time (when it's done it's done)Fucking hell.
Hopefully there's a way to get some sort of API access to them, because frankly I don't think WG will do a decent job with having them available or building a nice stats page out of it. Then again, WG, you could always hire me >.>
Looks like replay hosting is going to turn into a thing of the past, which kind of sucks, and makes me wonder if I should spend a lot of time on the site at the moment, because it may all be for nothing in the long run.
I really wish WG would listen to their customers sometimes.