I say take out that Flickerform and Rite of Replication out of the deck, Don't get me wrong, they are fantastic cards, but there is really nothing to gain spending 4 mana to blink a singular creature, or dumping 9 mana into something that doesn't win you the game, but only draws attention, I would say yes to that if this was a voltron build or a control shell. Roon is a creature based deck at the end of the day not either of those archetypes.

There are basic lands called Wastes, They are colorless lands that are supremely useful if you are running Eldrazi Displacer, especially since they're basics (you could also be a dick and play Thought-Knot Seer like me). If you ran either a couple more basics instead of those tap lands or put in the lands like these: Scattered Groves, Irrigated Farmland along with shock lands and/or the buddy land/tango land from BFZ, you can get rid of those top deck duds known as signets and run something more useful, like Swords to Plowshares or Path to Exile. You should also run Solemn Simulacrum instead of wood elves based on how many basics you are playing, you could turn this into a hyper ramp deck on the side that's immune to Blood Moon and Back to Basics You could also take out that caravan and put in the ever useful Commander's Sphere, at its worst it can get you a card.

If you are really worried about torpor orb (which we Roon player's ALL should) Then I recommend this removal: Naturalize, Disenchant, Krosan Grip, Return to Dust, Angelic Purge, and my personal favorite, Bant Charm. Why bant charm? It does everything. It can take care of a pesky artifact (torpor orb) it moves a creature to the bottom of their owner's library (torpor orb on a stick: Hushwing Gryff, and Tocatli Honor Guard), and can hit an instant that you don't want to see, it's just good. Get that birthing pod ASAP. Paired with your deceiver exarch, Derevi, and felidar you can pod again and again! I'd say take out that extra blink, its not that necessary. Those instant and sorcery spells that blink do nothing on an empty board state, where restoration angel can be a blocker. Throw in more counterspells, they do more in top deck mode anyway.

Value is good, but it really means nothing if you can't kill someone, let alone the rest of the table, armada wurm is good, but you could do better! Trostani's Summoner, Hornet Queen, and Avenger of Zendikar are fantastic threats by themselves, but what if I told you they had an exceedingly powerful interaction with Cathars' Crusade? I'll let that one sink in.

Some of the cards in the sideboard should be in the main deck, Thragtusk's leave the battlefield trigger gets around torpor orb, so you can still have a 5/3 and 3/3 team of beaters ready to kill the orb player (even if you can't gain that 5 life). There are even creatures that only benefit from leaving the battlefield, such as Nevermaker, or Meadowboon, and Reveillark recurs your whole deck as it stands when it leaves, and if you add the aforementioned summoner and hornet queen you can recur game enders, it can even go infinite with karmic guide and a sac outlet, like Ashnod's Altar, which I think you should be running anyway. Find a way to put in Prime Speaker Zegana, Duplicant, Mystic Snake, and Reclamation Sage into the deck, because they are way too good not to be played in your deck, let alone any Roon deck! You also won't need cards like Oblivion Ring if you have Thought-Knot Seer, reveals a hand and exiles a thing forever instead of having the risk of having it come back, and it's leave the battlefield trigger can make an ally! Day of Judgment hoses you just as much as the guy you are trying to punish, especially with how little recursion you are running. If you are scared of an out of hand board state get Duplicant or Fiend Hunter instead. I find Mirror Entity something I don't play, it doesn't give me value when it comes into play, and I need to pump mana into it to be good, I find myself using that mana to play more blink targets rather than the entity. You could also throw in another Planeswalker that actually benefits this decks overall game plan very well: Kiora, Master of the Depths, she untaps Roon, can get a creature or land we need, and if you ultimate her, gives us targeted removal when we blink our value creatures!

And for my final recommendation I point you towards the Minion Reflector, this baby does everything you could ever want. Doubles your ETB triggers (and LTB triggers depending) and gives you a disposable minion that can swing in with no repercussion! It can also go infinite with Reveillark, karmic guide, and Ashnod's altar to make an infinite army like Kiki-Jiki, Mirror Breaker. If you want more suggestions just ask, or check out my Roon list for reference!