I reread
the article (another CNN joint, because Internet access at work is very limited - it's CNN or Fox News), and it could just be a rumor, but it didn't mention specifics.
Tbh, until the announcement is made, everything is rumor and speculation.
I personally think the 4s will get the axe, but they'll keep the 5. There are currently three models available, with one as a "free" option. To keep a "free" option, which pulls people in, they'll have to keep offering three models. Getting rid of the 4s will mean all models have the same form factor, which reduces segmentation in manufacturing and the app environment.
This is assuming 5c is offered here. iPhone still has a strong market share here, but they're losing in Asia because of the lack of lower-priced models.
There have been photos leaked showing two additional colors for the 5s line (graphite and champagne). Again, champagne, which is gold-ish, would be an excellent addition in Asia where gold is a lucky color. They may well offer all colors in the US, which would be a lot of stock for stores to carry, assuming all colors were offered in all storage sizes and carriers.
But they haven't even officially announced the announcement yet.
(What's known is that Apple will be holding some as-yet-unspecified event on Sept 10, and Apple employees have vacation blackouts from Sept 15-28.)