"I'd like to keep some of the players that are out of contract in the summer and there will be negotiations, but I can understand how players might want to stay in this division or even play higher," Allen told the club's official website. "We'll have to see how that pans out in the next couple of months.
"The loan players we have will also go back to their clubs. I have a good idea that one might be sold by his club, one is keen to come back here but wants to try his luck with his own club first. One is with a club with a chance of promotion to the Premier League and if they don't go up he'll be an asset in the Championship next year.
"And another is being released by his club and we are in negotiations with him. I'm excited about next season already."
Meanwhile, highly-rated 15-year-old Jamie Edge is to have a second trial with Arsenal and will travel to Italy this week for a prestigious seven-team tournament.