Storm, supposedly, signed a two year deal for decent money when he came back, so I'd be surprised if he wanted to leave, but perhaps Roode leaving changes that, since he clearly came back with the Beer Money angle meant to be bigger than it was.
TNA is probably still in the process of adjusting to the size and number of contracts they can handle with an increasingly limited budget, so this isn't shocking. They should, hopefully, be able to hang on to a core nucleus of guys to help build a new generation there, unless morale gets too low. Still, they seem to be getting down to veteran who have chosen TNA voluntarily (the Hardy's, Abyss, Storm), so things might be settling in.