From the Scrying
Scrying spell:
As with all divination (scrying) spells, the sensor has your full visual acuity, including any magical effects.
So, I don't think the Scrying
Scrying spell changes anything about your vision (so for example, you keep your Darkvision while scrying into a dark room). As others have mentioned, you would definitely still get a sensor at their location. However, there's also nothing stopping you as a Bard/Wizard/Sorcerer from having a See Invsibility
See Invsibility spell ready to go. Detect <Magic|Alignment|etc>
Detect Magic/Alignment/etc is also an option for most casters, but unless it's Greater Scrying
Greater Scrying you still have the chance to fail.