Not really. Classic to an individual is related to their perception of quality, familiarity, and longevity. Bourne and Fallon "feel" lesser because we compare them to T2:3D and Twister/Ghostbusters. However, a child who starts going to Universal this summer has nothing to compare them to. After ten years of only knowing those attractions, even if they are of mediocre quality, they will become "classics."
No one here will say ET is the best attraction at Universal. It's good, but was never the best attraction at Universal. It sat comfortably in the middle of the pack. But, it's been around for 30 years. That longevity and the familiarity makes it "classic." If it closed after ten years, and got replaced by a similarly "good" Spongebob right when he was taking off, would it be as fondly remembered? More people recall Fear Factor and Herc/Xena then Wild West and Murder She Wrote. The only difference is familiarity and time.
My comment addressed that, to someone who is 22, three of their "classic Universal attractions" were replacements. "Classic Universal" to me is Murder She Wrote, Ghostbusters, and Earthquake.
Will Bourne be better than T2? Simply based on spectacle, I'd put money on "Yes." T2 was fun, but didn't have a lot of overall substance. Unless the execution is an absolute mess, all it has to be is "good enough." In 15 years, there will be a generation that views it as "classic Universal."