Third Case

Is it time we incorporated a third case into our writing system?  In English there are currently 2 cases, Capital and Minuscule - [A and a, being examples of Capital and Minuscule respectively]. but should we incorporate a third and if so, what would we use it for?

After reading about Ancient Greek and the development of the modern Greek Alphabet I came across some information that stated that the modern Greek alphabet has origins of 2,750 years ago, with the Capital letter case being largely unchanged since around the 4th century BC however the minuscule alphabet did not develop until the 8th century AD, when the Byzantine influence the Orthography of the alphabet and Cursive writing.  As a result of cursive script the modern minuscule Greek alphabet was born.

Latin has a similar history of a previously single case alphabet evolving into a dual case system.  Meanwhile some alphabets in use today according to wikipedia still use only 1 case:

Many other writing systems (such as those used in the Georgian language, Glagolitic, Arabic, Hebrew, and Devanagari) make no distinction between capital and lower-case letters

 So the question is, if you can have an alphabet that can exist with only 1 letter case, why do we need 2 moreover why would we want a third or more?  The answer might simply be "for clarity" - and possibly to make learning to write in English a little easier.  Arabic remains to be considered one of the hardest languages to learn, although worthy of note, a recent documentary on Channel 4 in the UK showcased a young man named James who managed to reach a level of fluency that would be expected from 2 years of study in 19 weeks - at the conclusion of which he was interviewed live on Jordan's New Day television programme.  See here for more information:  Channel4.com Hidden Talent Series 1 Episode 3: James Whinnery

Cases exist in English to allow distinction and clarification, capital letters used at the start of names and places for example can make recognising unusual words as names for non-native speakers as well as helping to identify many other nouns that do not necessarily translate.

A possible use for a third case would be to identify silent letters.  Computer fonts can be considered to have 3 cases as they support UPPER, lower and small caps cases, although in effect the small caps case is simply the capital case rendered on a smaller scale in most fonts.  Having a third case to identify silent letters might simplify things.  In the following examples the silent letters are highlighted red, when you see which letters are silent it makes it easier to read - although for most native speakers these uses are obvious, for new learners they can be hard to recognise:

Knife
Gnome
Climb
Crumb
Psychology
Island

Something to contemplate.