A bit of backstory behind the thaumanova reactor is that they mined their stuff from the jumping puzzle underneath Piken Square. Now I wonder if its a coïncidence that piken square is right above a cave full of mystical chrystals that summon random mobs from all over tyria.
Back in GW1 Piken Square was 1 of two outposts north of the wall that you could go to (besides Rin during one of the missions).
Why did they pick Piken Square? Why was Piken Square built there? As it was there in pre-searing ascalon too but nothing note-worthy is anywhere near Piken Square so that made me wonder if there’s more to the thaumanova reactor and the cave under piken square than Arenanet is letting off.
Plus the Thaumanova Reactor is in the Maguuma Jungle… Maybe we get to explore the Maguuma Wastes sometime soon