JJ developed hugely in the last year, particularly his physicality. Having watched Aaron a number of times, I'd suggest he will need to do similar and then we will know whether he has a chance. By all accounts his attitude and mentality are good, he's also got a great role model in his brother.
My one worry for Aaron is that as the club's progresses (hopefully) he will need to make his breakthrough into a much stronger team. He typically plays further forwards as well which is where clubs tend to spend their money.