We all can predict that in a few updates, the core will be ours to open, but what will be inside? heres my prediction: Boss rush
Basically you would face a T3 version of all the boss, Vanaduke however would remain the same, this wouldnt be a Shadow lair difficulty...At least until third/fifth stage, token counts could be 4-6 or 6-8
Boss one: Snarbolax
The snarbolax in T3 could be a Fast, Destructive monster! It would have a Second wave to its Spike toss attack or whatever its called...And the bell would have a slightly longer regen time, Also for a final form...Void Snarb. Thats right, a Void snarbolax, as in the Unknown passage, in the 3rd stage the boss then would become a Shadow lair boss, Planting a shadow seed, and getting a void coloring, Its attacks could inflict stun, Perhaps curse, Who knows? Maybe this could be the form for the Whole boss fight!
Boss two: Jelly King
In T3, The T3 jellies would spawn, and the minis would heal JK much more HP, JK Would be bulkier, With more defense and HP Thus becoming much harder, Obsidian weapons would be a MUST On this boss, Also, For another attack, i predict a sort of spike attack, you know, how the regular jellies can spawn spikes? Well JK Could do the same, but heres the catch, it'd take long for them to appear, but if you did get hit by one...it'd HURT. Just like the Snarbolax, Its final form could be a Void JK, With a shadow seed, To make things easier, lets reduce the ammount of minis to heal this beast, But to keep difficulty, Lets increase the HP It heals, Once you've defeated this titan, You may procede to the Roarm Twins.
Boss Three: Roarmulus Twins
This, THIS would be hard, Like usual T3 scuttlebots would spawn, But the new attack for Roarm twins...I have no clue, Perhaps an Extended wave for its status projectiles? Homing Rockets? I dont know, Anyways like the others, this monster turns void on its final stage, becoming harder to hit, and when you do, it becomes harder to bring down, When you finally bring it down, its off to vanaduke.
Boss four: Vanaduke
For the first four forms, Vanaduke is just his regular self...Until his fifth form, Prepare for difficulty, No status Affects, Slag gaurds, Not to mention the shadow seed, Void Vanaduke would be very hard, And his new attack? Charge, His attack and defense would be increased, like how trojans increase they're attack at will, at the same time this can inflict shock, You finish, And your done! Or are you?
Boss five: ???
Though i have no name, i can predict what this boss may be, For those Shadow LAir runners you may have recovered the Echo stones? The very creator of these stones may be the Final boss of this boss rush, But not to destroy you, to test you.
Another prediction Is the Alpha Squad, I know kind of wierd but this could be a bit of an Arkus battle, you battle all the members of the alpha squad, but they're different from when they first landed, The core changed them, In order to save them you must defeat them, VIDEO GAME LOGIC!
And my final prediction? You. a Mirror of Sorts, A monster becomes a Void knight and You are seperated from your party, but you can still talk to them! They are fighting copies of themselves as well, The AI For these enemies could completely copy the set of your knight, AI Would be like a more difficult Arkus, However this prediction is the least likely, think about how much work it'd take!
Speaking of which, this entire boss rush would take alot of work, Creating Void bosses, A new boss, the entire core, But before you say that this would take alot of work, understand that i know that, OOO Has alot on they're plate right now and i understand that, But i've thought about boss rush ever since i started playing, it'd be fun.

Stay strong my friends, -Dusk-Satoshi (NOT Corpse party satoshi, ASH Satoshi, like pokemon)