How so? IF there were objects further away that we can't see, how does that make the Universe older that what has been measured?
I say wait 20 or 30 more years when technology advances with even better telescopes. You'll be hearing the universe is at least a 100 billion years older or more.
I dare say that would be extraordinarily unlikely, as I'm quite sure there are observational data that place an UPPER bound on the possible age of the Universe, and that bound is much lower than 100 billion years. I wish I could remember the exact observational data that tell us this, but at the moment I can't recall what it is. Perhaps "Physicist" knows.....