All six of those players are almost certainly second-round prospects. They'll be bringing back forward Quincy Acy and point guard Casper Ware. Those two were part of a group workout held at the Target Center, three weeks ago, that had reps from all 30 NBA teams present.
The other four players include: guard Ashton Gibbs, forward Eric Griffin, forward Cameron Moore and forward T.J. Robinson.
As of right now the only player the Timberwolves have brought to the Target Center for a workout, who the TWolves would consider with that 18th overall pick has been Iowa State (and former-Gopher) forward Royce White. There's a good chance they'll bring a few more prospects in early next week. I'd say the chances are good that Minnesota intends to trade the pick, or there's a chance they've settled on Royce White.
After the workout in Minnesota, White cancelled all his other workouts. There is a rumor that Boston has made him a promise with the 21st overall pick. I won't get into too much speculation.
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