Lol, of course Paris isn't affected by the acquisition. Blackstone is private equity/asset management--it has nothing to do with pop culture and everything to do with investment and how to protect and expand (in short) Hilton's profits. Blackstone has no interest (or even experience) in actual hotel management, so don't misinterpret this acquisition to be that Hilton will have its name changed to Blackstone.
Think of it as Hilton Hotels being a child, and Blackstone as its new parent, who will take care of its money.