In Episode 9 of the Ninjago: Masters of Spinjitzu TV Series, there is a scene where Cole is explaining the history of The Blade Cup to the other ninja. He says the Blade Cup was created by a man named Clutch Powers. What signifigance does that have? Haha, well a lot.
Think about it, this confirms that Clutch Powers takes place in the same "universe" as Ninjago does. Backtracking a little bit, in the Clutch Powers movie, there is a scene where Clutch is digging under LEGO City for power crystals. And he's using Power Miners vehicles. The theme Power Miners was discontinued a few years ago, but. Dr. Brains from the Power Miners team was later featured in a LEGO Atlantis set. LEGO Atlantis was confirmed to have taken place in the same universe as Pharoh's Quest, Alien Conquest and Dino. (Remember that one comic?)
Now, one theme that is very simmilar to Alien Conquest is Galaxy Squad, which was discontinued at the end of last year. Galaxy Squad has a link to Ultra Agents, a theme that is being released this summer. Solomon Blaze will appear in both of those themes. Ultra Agents is notably simmilar to the original Agents theme (And Agents 2.0) that were released a few years ago. Agents 2.0 was also set in LEGO City. Backtracking once again, the Clutch Powers movie also confirms that Space Police and Kingdoms, Castle, etc. all take place in the same "universe" but on sperate planets. (If I recall correctly)
I'm not sure if this is what LEGO is going for, but I think that the majaroty of LEGO themes take place in the same LEGO world.
So yeah, I don't know if this has any signifigance or not, but I just felt like sharing it.