It really depends on the price of Lindholm so I'm not surprised Montreal are trying to deal him sooner rather than later. If the price for Lindholm is too high, it'll put teams off but that may not help Montreal as teams will want a cheap addition. Bjugstadt at Arizona is a similar age to Monahan, similar points, similar cap and bigger physically whilst unlikely to cost close to what Montreal want.
If the price for Lindholm isn't ridiculous, then teams will go there and it'll drive the prices of Monahan down.
Someone will take him, but it could easily be an underwhelming return. The idea that the Canadiens will keep him is just insane. Get some assets back and if he likes Montreal, re-sign him in the summer.