Only one font format

Hello everyone,

wouldn't it be time to clean up the font format we all know and have only one font format at the end?
Technology has changed. Software is running in browsers (like Google docs). More and more people are using their phones to surf in the WWW. Screen resolution is increasing dramatically (a couple hundred ppi for phones).

We have TTF, CFF, woff (TTF based), woff (CFF based), woff2 (TTF based), woff2 (CFF based), ...

When I look into TTF and CFF – we have three places to store the vertical metrics values, two places for the width of a glyph (CFF: in CFF table and hmtx) and the name table is just a mess.

I know, that we keep all the old stuff to be always backward compatible. But does this really make sense? 
I know, that we make more money when we sell different font formats. But is this really user friendly?

Wouldn't it be great to have only eg. woff3 (CFF based), which would work for desktop applications the same way like in browsers?

I am not long enough in the type business, but this question is in my mind form the beginning.

What do you think?

Many thanks for your thoughts,
Olli