Impressive on loan at the City Ground last season, Blackstock is back at QPR under their new manager Jim Magilton, with talk of a permanent move to Forest having died down.
Now Newcastle, who ended the season with former R's boss Iain Dowie as number two to Alan Shearer, are being linked with a £6m deal to sign Blackstock, Fitz Hall and Damien Delaney from the Loftus Road outfit.