The original post is looking great. Much of the threats I have seen are listed, though I have a few notable things I have noticed that could use a spot up there.
Hitmonchan - Bulky drain punching is this things best set, otherwise another Fighting should be used. Powerful priority should be mentioned due to Iron Fists boosts. Has access to Rapid Spin.
Hitmonlee - The strongest fighter in the tier. Choice band Hi Jump Kick hurts everything, and it has decent coverage. Scarf and Band both have benifits, but is also able to run Life Orb due to decent Speed.
Smash Pass/Gorybyss - Can't believe this hasn't been put up yet actually. Think Rhyperior was bad enough with just 1 +2 in attack or speed, now imagine +2 in both. Gorybyss can also sweep itself.
Pinsir - Good STAB in a tier full of Psychic and Darks. Has mold breaker to help in sweeping. Does best as a revenge killer though.
Electivire - With coverage good enough to make it OU last gen this thing is a threat. With the right moveset it can get near perfect SE coverage, and with a decent 123 Atk and 95 Sp.Atk it can deal some damage. Motor Drive helps to make it faster.
Sceptile - 120 Base Speed + 85 Atk, and 105 Sp.Atk. Great speed and decent offenses + a movepool most pokemon would kill for, need I say more.
Shuckle, Steelix, Weezing - All great walls. Weezing boasts being able to Burn + decent typing with levitate, Steelix has nice typing + Stealth Rock. Shuckle has the highest defense stats in the game. Power Share means that it won't die. Lacks reliable recovery outside of rest.
On the note of Shuckle a set of Acupressure/Power Share/Rest/Rollout is ridiculous. Remember inconsistent Bibarel? That is what Shuckle is like, just a bit harder to pull off, and it won't die to a random crit....
And you might want to consider adding Slaking, just for its sheer stat base. When it comes in something will be hurt.