At this time, no HORRORS have been seen that anyone knows about, but there might be some Horrors and certainly some horrors.
That is to say, you'll find wimpy lil' footsoldier types, like Gum Toads if you search enough ... the Azzies were bringing those things in by 2050, for instance. They're the least of what you could see in the proper Metaplanes.
There might also be some Horrors, such as the corrupted dragon that may or may not exist in Aztlan, or othe rtypes of "Lieutenant" level Horrors.
But you're quite unlikely to see a full-blown HORROR just chillin' somewhere, melting faces and eating elbows while they chill in a theatre in New York. The mana levels are too low for them to exist here (yet) and the connective bridges were broken that they would have slid down.
The more worrisome part are the people who, willingly or not, are helping to bridge the chasm. They could accidently let something in. How long it could remain before it had to leave for greener pasture is a question that I don't think people want to have answered.
