Especially with the mixed/negative reception of Gundam Age?
I don't think so. Gundam 00 was a hit by all accounts. So was Wing, SEED, SEED Destiny, and Unicron. One of the last 5 properties has been less than amazing (and I haven't seen the sales of it and this is solely by your account). That's hardly a sign of doom and gloom.
If anything, Age is a good sign that they're willing to not rest on their laurels and trying new things and new ways to push the franchise forward.