Frankly there is very little reason if the costs are similar to that of the Apollo program. It's just too expensive for any reasonable return compared to sending robot probes.
However if the costs can be cut by a couple of orders of magnitude, that picture changes considerably. All of a sudden the scientific payback in terms of geological insight into the history of the Earth/Moon system or resource extraction such as water and fuel become a lot more attractive. With SpaceX and Blue Origin working hard to do exactly that, it's quite possible we might return to the moon in a decade or two.
Is Blue Origin trying to reach the Moon? I'm not aware of a project from Spacex or Blue Origin to do so. Spacex has their sights on Mars and Blue Origin seems to be about space tourism (orbit maybe). I admit to not being aware of the long term goals of Blue Origin though so maybe I missed something.
However if the costs can be cut by a couple of orders of magnitude, that picture changes considerably. All of a sudden the scientific payback in terms of geological insight into the history of the Earth/Moon system or resource extraction such as water and fuel become a lot more attractive. With SpaceX and Blue Origin working hard to do exactly that, it's quite possible we might return to the moon in a decade or two.