The former Tottenham playmaker is wanted by French PSG, although the clubs have yet to agree a fee.
Warnock recently stated the 22-year-old's future remained 'up in the air' but he now expects progress imminently and Taarabt will miss the club's pre-season tour of Cornwall and Italy to resolve the situation.
"Adel won't be coming with us," explained Warnock.
"I think he will be talking with his people and staying to do his training.
"The ongoing transfer saga with PSG should come to a head shortly."