when released?

First: Sorry for my English.
Second: When can we see the finished version of this product? I'm looking at CI4 from the date of the announcement and is still empty. Yes, I saw Pre-alpha (which is not recommended to use) how much will this status be? year? two? Then what? Alpha ... Pre-beta ... Beta ... Pre-gamma ... Gamma ...
I liked CI3, but as it was already said, it is really outdated and requires modernization. I understand the problems of developers that they can not do everything at once. But more than a year has passed.
I want to know the timing of the final product. And decide whether to wait for it at all.