Pretty sure Holland hasno intention of moving Howard at this point, at least from an article I read. He said they will be going into the season with Mrazek as the number 1 goalie, but he's happy to still have Howard, as he doesn't want to put too much pressure on Mrazek yet, and likes having Howard's veteran presence behind him to help out. Mentioned that Mrazek is only 24 and doesn't want him to have to handle 70 games. Or maybe he's just resigned to the fact that he's stuck with Howard and is trying to put some kind of positive spin on it. Who knows I guess.
Given that he more or less lost any trade partners a week before he went positive about keeping Howard, I'd say he's resigned to the situation. He openly said trading him would be best, and it absolutely would be for the Wings and for Howard, but that doesn't appear to be in the cards right now. Hopefully someone will need a goalie at some point next season and we can move him before likely losing him for nothing in the expansion draft.