Panic Attack and Cleaner's Carbine seem fine to me. Tide Turner I'm not sure about, I don't play demoknight much and I'm really bad with it. I do think that stickies are always better in a serious environment though.
Wrap Assassin is a straight upgrade to the stock Bat if you consider that nobody really uses melee to do damage anyway. So the -70% melee damage is kind of irrelevant. Gives scout a long range option which I think is kind of stupid considering the stock weapons all require you to be fairly close to your target to do good damage.
Guillotine isn't really good without Sandman, still gives scout a long range option on a very short cooldown.
Bleed effects in general are pretty dumb because it just makes the enemy run to healthkits the entire time.
Brass Beast damage reduction when spun up is pretty insane. Fully charged headshot doesn't even kill a buffed heavy. Machina counters this to an extent. Just think about Brass Beast heavy on snakewater last, it's already really good because it's so hard to kill. Could see this getting unbanned and still not being used though simply because people like being more mobile.
Phlog is pretty insane, Scorch Shot is allowed. Really easy to spam and get full charge in a reasonable time.
Gunslinger is different now, but still really strong. I actually think it got buffed. You can hit mini sentries now to make them build faster. You can also repair them. Minis completely destroy scouts if positioned correctly, they always need help of a projectile class to kill it. And even if they destroy it, the engi can just build a new one pretty much instantly.