Steve Clarke is hoping to keep Glenn Murray at Reading after his loan deal expired following the 2-1 win over Norwich.
QPR boss Harry Redknapp admitted he needs to strengthen his squad after his side's 0-0 draw with Crystal Palace.
A successful campaign which has delivered a spot in the Sky Bet Championship play-offs and a shot at a return to the Premier League has been aided by the performances of those drafted in on short-term agreements.
The loan market has been used to the fullest, with the likes of Patrick Bamford, George Thorne and Andre Wisdom having helped to carry Derby up the second tier standings.
Steve McClaren has been suitably impressed by all three of his leading loanees, with the trio useful assets for the present but also hot prospects for the future.
Taking that into account, discussions will be held at the end of the season regarding full-time deals.
The success of those talks will, however, rest in the hands of parent clubs Chelsea, West Bromwich Albion and Liverpool.
First team coach Paul Simpson told the Derby Telegraph: "We know what we want, it is a case of seeing what the parent clubs want to do with their players.
"These are all discussions that we need to have over the coming weeks.
"I think they (the players) have shown they can fit into our group, fit into Derby County.
"As a football club, we have shown we can look after them properly and will try and teach them the way Steve McClaren wants to play."