Sadly there won't be any of those classic themes, until NInjago goes on. That's just the ultimate abomination, the melting pot of all themes. Ninjas cruising space-pirate-ships with dragons on land rovers against skeleton mechas firing lasers and gatling guns in their castles. It's so everything, it is actually nothing. Every time I go into a Lego store I just can't really decide what am I seeing on the box. I start to think maybe I'm getting old? I realize that I'm actually not. I still examine the sets and take a look at the details. Then I still get the conclusion: The new sets are just truly a mess. Too much of everything, too much individual minifigures, every brick and piece is made to be a unique one. At the end none of them are.
It seems Lego was so bleeding out in the 90's financially that they really can't be revisionists anymore. Even the new Jurassic World set is about a T-rex fighting a dino mecha. They just begging out loud to make a sale in every set. I feel for them, it can't be easy to stay competitive in today's online, almost augmented world. Altough when I was a kid (late 90's - early 2000's), me and my friends were always browsing old catalouges all the time (from the 80's and 90's), because we hated the new messy themes. We were filled with awe looking at the old dioramas, the choosable factions. We hated that Lego takes us that stupid and create infantile themes for us.
Every time I show these to kids today I just see the truth in their reaction, in their eyes: They know they've been cheated and this is how Lego should still look like.
They DO say they were much better than this:
I admit, there was some brief success in Vikings and the Fantasy Era castle themes after the early 2000's bottom. Sadly that was just in my dark ages, but I accept those as proper, original Lego themes. Today, TLC does not take their own mission and their own customers seriously anymore. The new pirates themes were poor shadows of themselves. This is the reuslt of cost-optimalization, this is sales-tinkering, this is Lego's new adventure-based identity if not something licensed.
And yes, it has been 30 years. And we got nothing as it seems. Nothing any new, not even a single middle-sized nostalgia set with simple smiley-faced pirates to raise the hats. Just a Slave I.