I really don't see what they've done for 2K15 or 2K16 that would give you this idea. They'll address bugs or glitches in updates but adding content isn't really their thing.
They generally (with the exception of the Four Horsewomen news last year) stay quiet on things. Easily one of the most closed-in development teams around today.
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As it is, Universe mode info sounds...who knows? They spent a third of the blog explaining how to set up a PPV, when that's been in for years.