That inline filter won't aerate, since no air is being introduced.
As for the air stone-in-a-tube idea, that works if you really need to see the wort passing through a clear tube.
The reality is that you only need to oxygenate an entire 5 gallon batch for about 1 minute to get total saturation. Anything longer than that is a waste of oxygen.
I suspect transferring wort through a tube will take longer than 1 minute, and may be overkill.
On the other hand I like gadgets and gizmos, and oxygenating in a clear tube definitely falls in that category.