I can't imagine Eddie House returning after being left out of the rotation come playoff time. He'll be gone.
Tony Allen is a trickier question, completely depends on the interest he recieves this summer. If someone makes him a solid offer I think there's a very strong chance Danny lets him go. If the interest is weak he'll probably return for one more year at low money. I don't think it's likely Danny signs him to a multi-year contract. As for Tony feeling slighted, I expect his first choice will be to leave but he'd be content staying.
James Posey's future with the team could also be a deciding factor for Tony. If James opted out and left (larger, longer contract offer elsewhere?) I think Tony would definitely want to stay. If Posey returns for another year the liklihood is lower for Tony returning.