A new weapon table will be coming the next UA. They've been play testing the new weapon options internally for awhile.
The weapon chart includes a new column called "weapon mastery."
Mastery properties are special proeprties in a weapon that allow you to have a class feature to unlock them. So if a wizard picks up a dagger, they can't use the 'nick" property. A fighter with the same dagger can unlock that ability. They're a little cantrip-like in their effects.
Each of the warrior classes work wiht the mastery property a little differently. Monks can unlock it in simple weapons because they are the mastter of common objects. So if you unlock the club mastery, you can slow someone in addition to doing damage.
"Flex" lets you use they can use damage two handed damage one handed.