[badave]

The answer is just a flat and obvious, "No".

Firstly, symbols have been around for thousands of years. Our written language is built around them, and our everyday life is surrounded by them. These aren't going anywhere and are a required abstraction for higher thought. These aren't going away.

Second, logos are prettier symbols, but they are pervasive in our world. Every single business has a logo and tries to push that logo and brand at you every chance they get. These aren't going away.

Third, icons are logos and/or symbols. It stands to reason that if the previous two aren't going anywhere, then icons aren't going anywhere.

Until we have telepathy, that is.