I have used Chinese for 17 years and learning English for more than 15 years. Some years ago, I learned French (Although my mind is nearly empty now...). All I can say is the Character based Languages are backed up with history. Many of the Chinese Caracters have its own story and meanings. The characters we, Native Chinese, used are carrying many different meanings. Especially for the Traditional Version used in Hong Kong, Macau, and Taiwan provinces nowadays. Some of the words are base on the pronounciation and some are from pictures.
It is logically ok for you to design new Charaters to become "word" or "Language" but it will be hard for you to do so or promote it.
In China, we reckon language as 約定俗成, that means the common sense of the public. Language and word in China are considered as a gift inherited from our ancestors.
In fact, if you wanna use Charaters to represent meaning of such a world with so many things, and you have nothing backing you up, how can you do so? Moreover, you said that you want to have some simplyfied version of Characters, it is even more rediculous. It is already so hard to use limited and flat figures to represent abstract meanings. How can you simplyfy it? For instance, the word East, 東 , it is the sun, 日 , hanging up on tree, 木. You know, there is so much meaning behind one word! How can you simplify all those words?
However, I would like to see your product. Show us.