My feelings on hall have nothing to do with him previously being an Oiler. There is no doubt that he was a top end offensive player a few years ago, but I wouldn't give away significant assets to get half a year of Hall. And if you bring him back, the contract he would sign would almost immediately put him under water in terms of value for the contract. You might get one year of value where the contract is worth what he brings, but after that, the contract would be an albatross.
This team is not in a position to do that - we probably are not challenging for the cup this year.
Although, if we wanted to have a shot at the first over all pick this year, having Hall on the team would help increase our odds
