interesting question nn!

I have scorpio uranus and aries mercury
so I am going to try to pretend I had mercury in either aquarius or leo instead

If I had mercury in leo it might be tempting to suppress my own unique and new approach/ideas in favor of something that is more marketable/hot/glorious (thereby selling out something that may have been brilliant for something with mere mass appeal).
Another possibility would be that when I do come up with something original no one pays attention to it or I have trouble getting the idea known
OR if I worked it right I could come up with totally hot original ideas that make me famous

If I had mercury in aquarius maybe my unique/brilliant viewpoint/ideas might cut me off from the greater community and be misunderstood.
Another posibility would be that I might get stuck in some kind of progressive movement and forget my own individual identity separate from the cause.
OR if I worked it right I could lead the greater community into a new progressive movement based on my own brilliant inspiration

I also think that the combination of mercury and uranus could indicated something technological. It might represent a capacity for different kinds of "inventions" that, with work and luck might be revolutionary...or...they might just be misunderstood/crazy/obscured.
I just mentioned "ideas" genericly above...but a technological streak to the ideas would seem likely.

I have Mercury (in Aquarius) opposite Uranus (in Leo)
All I can say about it is I get misunderstood a lot. :oS

It might be interesting to know which houses your mercury and uranus are in?