I don't think monks will be able to use a heavy weapon as a monk weapon. I suspect not too many people are aware that quarterstaff and spear are actually versatile, so that may be the reason why it was claimed that monks would be able to wield heavy weapons.
I guess we'll find out soon enough and if all else fails it's yet another thing modders will have to fix.
The change to crossbows and crossbow expert are ... utterly stupid. They serve no real purpose and effectively make bows redundant.
