Definitely available:
Tyson Barrie, RD (7th round pick? - retention possible; he wants out)
Probably available:
Yakov Trenin, LW (2nd round pick? - impending UFA)
Dante Fabbro, RD (2nd-4th round pick? - better player than the Preds seem to think)
Possibly available but not too likely to move:
Kiefer Sherwood, LW/RW (7th round pick? - fringe energy winger)
Michael McCarron, C (7th round pick? big 4th liner - not worth trading him cheaply)
Thomas Novak, C (2nd round pick? - prefer to re-sign him instead if possible)
Denis Gurianov, RW (free/waiver wire fodder)
Kevin Lankinen, G (5th round pick? - probably Preds would rather just keep him so Askarov can keep playing in Milwaukee)